3rd Party Patch Roundup – July 2019

As July comes to an end, summer is winding down in most of the northern hemisphere. Parents and children in many areas are starting to prepare for the beginning of a new school year. Parts of Europe will soon be experiencing “August shutdown” as many workers go on vacation. Those of us in especially hot climates are looking forward to the cooler light at the end of the tunnel when autumn arrives. The swallows are staging to leave their northern breeding grounds and return to their winter homes.

And in the IT world as in the theater, regardless of the time or temperature, the show must go on. The hackers are still hard at work, and July had its share of data breaches in the news – including Capital One, the Los Angeles Police Department, and Sephora.

Many such breaches are accomplished by exploiting vulnerabilities In the operating systems, applications, and protocols running on network devices. This month, CISA (Cybersecurity and Infrastructure Security Agency) warned of multiple vulnerabilities in Virtual Private Network (VPN) applications and a number of critical remote code execution vulnerabilities were discovered in VxWorks, a real-time operating system that runs on more than 2 billion devices in industrial, health-care and enterprise environments.

One quick glance at any current security news site illustrates the importance of keeping all the systems and devices on our network – not just PCs – updated with the latest security fixes. Gone are the days when you could apply Microsoft’s Patch Tuesday releases each month and be done with it. Today we have to keep up with the products and software services of a myriad of vendors.

Now let’s take a look at what this month has brought us from some of them.

Apple

If you were thinking (or hoping) that Apple’s release of ten updates last month would mean getting off easy this time, think again. After staying quiet for the first three weeks, on July 22 the company issued eight patches, and then three more the next day, for a total of eleven this month (as of this writing on July 31).

The following were released on July 22:

iOS 12.4 for iPhone 5s and later, iPad Air and later, and iPod touch 6th generation and later,
iOS 10.3.4 (This update has no published CVE entries) for iPhone 5, iPad (4th generation) Wi-Fi + Cellular
iOS 9.3.6 (This update has no published CVE entries) for iPhone 4s, iPad mini (1st generation) Wi-Fi + Cellular, iPad 2 Wi-Fi + Cellular, iPad (3rd generation) Wi-Fi + Cellular
tvOS 12.4 for Apple TV 4K and Apple TV HD
Apple TV Software 7.3.1 (This update has no published CVE entries). Apple TV (3rd generation)
Safari 12.1.2 for macOS Sierra 10.12.6, macOS High Sierra 10.13.6, and included in macOS Mojave 10.14.6
macOS Mojave 10.14.6, Security Update 2019-004 High Sierra, Security Update 2019-004 Sierra for macOS Sierra 10.12.6, macOS High Sierra 10.13.6, and macOS Mojave 10.14.5
watchOS 5.3 Apple Watch Series 1 and later 22 Jul 2019

The following were released on July 23:

iCloud for Windows 10.6 for Windows 10 and later via the Microsoft Store
iCloud for Windows 7.13 for Windows 7 and later
iTunes 12.9.6 for Windows for Windows 7 and later

Vulnerabilities patched by these updates span many operating system components, including the OS kernel, and include such impacts as critical arbitrary code execution issues, unauthorized interception of communications between servers, unexpected application termination, denial of service, restriction of access to web sites, and more.

Vulnerability types include memory corruption, memory leak, stack overflow, type confusion, validation issues, use-after-free, out-of-bounds read, and more.

For more information about the current and past patches and the vulnerabilities that they address, see the Apple Support web site at https://support.apple.com/en-us/HT201222

Adobe

Adobe released bulletins/advisories for three security updates in July, all of which came out on their usual Patch Tuesday release date, July 9th:

APSB19-40 Security update available for Adobe Dreamweaver This update resolves an insecure library loading vulnerability in the installer that could lead to privilege escalation. It is rated important, priority level 3, for Adobe 19.0 and below running on Windows.
APSB19-38 Security update available for Adobe Experience Manager These updates resolve one reflected cross-site scripting vulnerability rated Moderate, one stored cross-site scripting vulnerability rated Important and one cross-site request forgery vulnerability rated Important that could result in sensitive information disclosure. Priority level is 2 on all platforms.
APSB19-37 Security update available for Adobe Bridge CC This update addresses a vulnerability rated that occurs when parsing malformed SVG images, which can result in an out-of-bounds memory read that can lead to information (memory address) disclosure in the context of current user. It is rated important, with priority level 3 running on Windows and macOS.

For more information, see the security bulletin summary at
https://helpx.adobe.com/security.html

Google

Chrome v.76 – On July 30th, Google released a stable channel update for the Chrome desktop browser for Windows, Mac and Linux. It contains fixes for at least sixteen medium and high severity vulnerabilities that include use-after-free issues, memory corruption, integer overflow, site isolation bypass, insufficient checks on file system, and more.
Chrome v76 for Android – on the same date, Google released the latest version of Chrome for the Android mobile operating system.
Android Security Bulletin – on July 1, Google released the July Android security bulletin to address vulnerabilities including remote code execution, bypass of user interaction requirements, and vulnerabilities in Qualcomm components. The most severe of these issues is a critical security vulnerability in Media framework by which a remote attacker using a specially crafted file could execute arbitrary code within the context of a privileged process.

For more information about Chrome updates, see https://chromereleases.googleblog.com

For more information about the vulnerabilities that are addressed by the Android updates, see https://source.android.com/security/bulletin/2018-11-01

Oracle

Oracle normally releases security updates on a quarterly cycle, in January, April, July and October. This month, Oracle released its quarterly updates on July 17th.

This Critical Patch Update contains 319 new security fixes across their product families. These include Oracle Database Server, Oracle Fusion Middleware, Oracle Hyperion, Oracle Enterprise Manager, Oracle E-Business Suite, Oracle PeopleSoft, Oracle Siebel CRM, Oracle Industry Applications (Construction and Engineering, Communications, Financial Services, Hospitality, Food & Beverage, Retail, Utilities, Insurance), Oracle Java SE, Oracle Support Tools, Oracle Virtualization, Oracle Graal VM, Oracle MySQL, and Oracle Sun Systems Products Suite.

Oracle customers can read more about this update in the executive summary on the Oracle Support site at https://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html.

Mozilla

On July 9th, Mozilla released Firefox v68, which contains fixes for twenty-one vulnerabilities: two critical, four high severity, ten moderate, and five low severity. The vulnerabilities include:

CVE-2019-9811: Sandbox escape via installation of malicious language pack – As part of his winning Pwn2Own entry, Niklas Baumstark demonstrated a sandbox escape by installing a malicious language pack and then opening a browser feature that used the compromised translation.
CVE-2019-11711: Script injection within domain through inner window reuse – When an inner window is reused, it does not consider the use of document.domain for cross-origin protections. If pages on different subdomains ever cooperatively use document.domain, then either page can abuse this to inject script into arbitrary pages on the other subdomain, even those that did not use document.domain to relax their origin security.
CVE-2019-11712: Cross-origin POST requests can be made with NPAPI plugins by following 308 redirects – POST requests made by NPAPI plugins, such as Flash, that receive a status 308 redirect response can bypass CORS requirements. This can allow an attacker to perform Cross-Site Request Forgery (CSRF) attacks.
CVE-2019-11713: Use-after-free with HTTP/2 cached stream – A use-after-free vulnerability can occur in HTTP/2 when a cached HTTP/2 stream is closed while still in use, resulting in a potentially exploitable crash.
CVE-2019-11714: NeckoChild can trigger crash when accessed off of main thread – Necko can access a child on the wrong thread during UDP connections, resulting in a potentially exploitable crash in some instances.
CVE-2019-11729: Empty or malformed p256-ECDH public keys may trigger a segmentation fault – Empty or malformed p256-ECDH public keys may trigger a segmentation fault due values being improperly sanitized before being copied into memory and used.
CVE-2019-11715: HTML parsing error can contribute to content XSS – Due to an error while parsing page content, it is possible for properly sanitized user input to be misinterpreted and lead to XSS hazards on web sites in certain circumstances.
CVE-2019-11716: globalThis not enumerable until accessed – Until explicitly accessed by script, window.globalThis is not enumerable and, as a result, is not visible to code such as Object.getOwnPropertyNames(window). Sites that deploy a sandboxing that depends on enumerating and freezing access to the window object may miss this, allowing their sandboxes to be bypassed.
CVE-2019-11717: Caret character improperly escaped in origins – A vulnerability exists where the caret (“^”) character is improperly escaped constructing some URIs due to it being used as a separator, allowing for possible spoofing of origin attributes.
CVE-2019-11718: Activity Stream writes unsanitized content to innerHTML – Activity Stream can display content from sent from the Snippet Service website. This content is written to innerHTML on the Activity Stream page without sanitization, allowing for a potential access to other information available to the Activity Stream, such as browsing history, if the Snipper Service were compromised.
CVE-2019-11719: Out-of-bounds read when importing curve25519 private key – When importing a curve25519 private key in PKCS#8format with leading 0x00 bytes, it is possible to trigger an out-of-bounds read in the Network Security Services (NSS) library. This could lead to information disclosure.
CVE-2019-11720: Character encoding XSS vulnerability – Some unicode characters are incorrectly treated as whitespace during the parsing of web content instead of triggering parsing errors. This allows malicious code to then be processed, evading cross-site scripting (XSS) filtering.
CVE-2019-11721: Domain spoofing through unicode latin ‘kra’ character – The unicode latin ‘kra’ character can be used to spoof a standard ‘k’ character in the addressbar. This allows for domain spoofing attacks as do not display as punycode text, allowing for user confusion.
CVE-2019-11730: Same-origin policy treats all files in a directory as having the same-origin – A vulnerability exists where if a user opens a locally saved HTML file, this file can use file: URIs to access other files in the same directory or sub-directories if the names are known or guessed.
CVE-2019-11723: Cookie leakage during add-on fetching across private browsing boundaries – A vulnerability exists during the installation of add-ons where the initial fetch ignored the origin attributes of the browsing context. This could leak cookies in private browsing mode or across different “containers” for people who use the Firefox Multi-Account Containers Web Extension.
CVE-2019-11724: Retired site input.mozilla.org has remote troubleshooting permissions – Application permissions give additional remote troubleshooting permission to the site input.mozilla.org, which has been retired and now redirects to another site. This additional permission is unnecessary and is a potential vector for malicious attacks.
CVE-2019-11725: Websocket resources bypass safebrowsing protections – When a user navigates to site marked as unsafe by the Safebrowsing API, warning messages are displayed and navigation is interrupted but resources from the same site loaded through websockets are not blocked, leading to the loading of unsafe resources and bypassing safebrowsing protections.
CVE-2019-11727: PKCS#1 v1.5 signatures can be used for TLS 1.3 – A vulnerability exists where it possible to force Network Security Services (NSS) to sign CertificateVerify with PKCS#1 v1.5 signatures when those are the only ones advertised by server in CertificateRequest in TLS 1.3. PKCS#1 v1.5 signatures should not be used for TLS 1.3 messages.
CVE-2019-11728: Port scanning through Alt-Svc header – The HTTP Alternative Services header, Alt-Svc, can be used by a malicious site to scan all TCP ports of any host that the accessible to a user when web content is loaded.
CVE-2019-11710: Memory safety bugs fixed in Firefox 68 – Mozilla developers and community members reported memory safety bugs present in Firefox 67. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code.
CVE-2019-11709: Memory safety bugs fixed in Firefox 68 and Firefox ESR 60.8 – Mozilla developers and community members reported memory safety bugs present in Firefox 67 and Firefox ESR 60.7. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code.

For more information about these and other vulnerabilities patched by Mozilla, see https://www.mozilla.org/en-US/security/advisories//mfsa2018-26/

Linux

Popular Linux distros, as usual, have seen a number of security advisories and updates this month. During the month of May, Ubuntu issued the following fifty-four security advisories since last month’s roundup. Some of these advisories address a large number of vulnerabilities in one advisory. In some cases, there are multiple advisories for the same vulnerabilities. Other commercial Linux vendors issued a similar number of updates.

USN-4082-2: Subversion vulnerabilities USN-4082-1 fixed several vulnerabilities in Subversion. This update provides the corresponding update for Ubuntu 12.04 ESM. Original advisory details: Ace Olszowka discovered that Subversion incorrectly handled certain svnserve requests. A remote attacker could possibly use this issue to cause svnserver to crash, resulting in a denial of service.
USN-4083-1: OpenJDK 11 vulnerabilities It was discovered that OpenJDK did not sufficiently validate serial streams before deserializing suppressed exceptions in some situations. An attacker could use this to specially craft an object that, when deserialized, would cause a denial of service.
USN-4082-1: Subversion vulnerabilities Ace Olszowka discovered that Subversion incorrectly handled certain svnserve requests. A remote attacker could possibly use this issue to cause svnserver to crash, resulting in a denial of service. (CVE-2018-11782) Tomas Bortoli discovered that Subversion incorrectly handled certain svnserve requests.
USN-4081-1: Pango vulnerability It was discovered that Pango incorrectly handled certain inputs. An attacker could possibly use this issue to execute arbitrary code.
USN-4080-1: OpenJDK 8 vulnerabilities Keegan Ryan discovered that the ECC implementation in OpenJDK was not sufficiently resilient to side-channel attacks. An attacker could possibly use this to expose sensitive information. (CVE-2019-2745) It was discovered that OpenJDK did not sufficiently validate serial streams before deserializing suppressed exceptions in some situations.
USN-4079-1: SoX vulnerabilities It was discovered that SoX incorrectly handled certain MP3 files. An attacker could possibly use this issue to cause a denial of service.
USN-4078-1: OpenLDAP vulnerabilities It was discovered that OpenLDAP incorrectly handled rootDN delegation. A database administrator could use this issue to request authorization as an identity from another database, contrary to expectations. (CVE-2019-13057) It was discovered that OpenLDAP incorrectly handled SASL authentication and session encryption.
USN-4077-1: tmpreaper vulnerability It was discovered that tmpreaper incorrectly handled certain mount operations. A local attacker could possibly use this issue to create arbitrary files, leading to privilege escalation.
USN-3990-2: urllib3 vulnerability USN-3990-1 fixed a vulnerability in urllib3. This update provides the corresponding update for Ubuntu 14.04 ESM. Original advisory details: It was discovered that urllib3 incorrectly stripped certain characters from requests. A remote attacker could use this issue to perform CRLF injection. (CVE-2019-11236)
USN-4076-1: Linux kernel vulnerabilities It was discovered that a race condition existed in the Serial Attached SCSI (SAS) implementation in the Linux kernel. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code.
USN-4054-2: Firefox regressions USN-4054-1 fixed vulnerabilities in Firefox. The update introduced various minor regressions. This update fixes the problems. We apologize for the inconvenience. Original advisory details: A sandbox escape was discovered in Firefox.
USN-4075-1: Exim vulnerability Jeremy Harris discovered that Exim incorrectly handled sort expansions. In environments where sort expansions are used, a remote attacker could possibly use this issue to execute arbitrary code as root.
USN-4074-1: VLC vulnerabilities It was discovered that the VLC CAF demuxer incorrectly handled certain files. If a user were tricked into opening a specially-crafted CAF file, a remote attacker could use this issue to cause VLC to crash, resulting in a denial of service. This issue only affected Ubuntu 18.04 LTS.
USN-4073-1: libEBML vulnerability It was discovered that libEBML incorrectly handled certain media files. If a user were tricked into opening a specially crafted media file, libEBML could possibly be made to crash, resulting in a denial of service.
USN-4072-1: Ansible vulnerabilities It was discovered that Ansible failed to properly handle sensitive information. A local attacker could use those vulnerabilities to extract them.
USN-4071-2: Patch vulnerabilities USN-4071-1 fixed several vulnerabilities in Patch. This update provides the corresponding update for Ubuntu 14.04 ESM. Original advisory details: It was discovered that Patch incorrectly handled certain files. An attacker could possibly use this issue to access sensitive information.
USN-4071-1: Patch vulnerabilities It was discovered that Patch incorrectly handled certain files. An attacker could possibly use this issue to access sensitive information. (CVE-2019-13636) It was discovered that Patch incorrectly handled certain files. An attacker could possibly use this issue to execute arbitrary code.
USN-4070-1: MySQL vulnerabilities Multiple security issues were discovered in MySQL and this update includes a new upstream MySQL version to fix these issues. Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 19.04 have been updated to MySQL 5.7.27. In addition to security fixes, the updated packages contain bug fixes, new features, and possibly incompatible changes.
USN-4069-1: Linux kernel vulnerabilities It was discovered that an integer overflow existed in the Linux kernel when reference counting pages, leading to potential use-after-free issues. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
USN-4068-2: Linux kernel (HWE) vulnerabilities USN-4068-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 18.04 for Ubuntu 16.04 LTS.
USN-4068-1: Linux kernel vulnerabilities Adam Zabrocki discovered that the Intel i915 kernel mode graphics driver in the Linux kernel did not properly restrict mmap() ranges in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
USN-4067-1: Evince vulnerability It was discovered that Evince incorrectly handled certain PDF files. An attacker could possibly use this issue to cause a denial of service or to execute arbitrary code.
USN-4065-2: Squid vulnerabilities USN-4065-1 fixed several vulnerabilities in Squid. This update provides the corresponding update for Ubuntu 12.04 ESM. Original advisory details: It was discovered that Squid incorrectly handled Digest authentication. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service.
USN-4066-2: ClamAV vulnerability USN-4066-1 fixed a vulnerability in libmspack. This update provides the corresponding update for ClamAV in Ubuntu 12.04 ESM and Ubuntu 14.04 ESM. Original advisory details: It was discovered that ClamAV incorrectly handled certain CHM files. A remote attacker could possibly use this issue to access sensitive information.
USN-4066-1: libmspack vulnerability It was discovered that libmspack incorrectly handled certain CHM files. A remote attacker could possibly use this issue to access sensitive information.
USN-4065-1: Squid vulnerabilities It was discovered that Squid incorrectly handled Digest authentication. A remote attacker could possibly use this issue to cause Squid to crash, resulting in a denial of service. (CVE-2019-12525) It was discovered that Squid incorrectly handled Basic authentication. A remote attacker could use this issue to cause Squid to crash, resulting in a…
USN-4064-1: Thunderbird vulnerabilities A sandbox escape was discovered in Thunderbird. If a user were tricked in to installing a malicious language pack, an attacker could exploit this to gain additional privileges. Multiple security issues were discovered in Thunderbird.
USN-4063-1: LibreOffice vulnerabilities Nils Emmerich discovered that LibreOffice incorrectly handled LibreLogo scripts. If a user were tricked into opening a specially crafted document, a remote attacker could cause LibreOffice to execute arbitrary code. (CVE-2019-9848) Matei “Mal” Badanoiu discovered that LibreOffice incorrectly handled stealth mode.
USN-4059-2: Squid vulnerabilities USN-4059-1 and USN-3557-1 fixed several vulnerabilities in Squid. This update provides the corresponding update for Ubuntu 12.04 ESM. Original advisory details: Louis Dion-Marcil discovered that Squid incorrectly handled certain Edge Side Includes (ESI) responses. A malicious remote server could possibly cause Squid to crash.
USN-4062-1: WavPack vulnerabilities Rohan Padhye discovered that WavPack incorrectly handled certain WAV files. An attacker could possibly use this issue to cause a denial of service.
USN-4060-2: NSS vulnerabilities USN-4060-1 fixed several vulnerabilities in nss. This update provides the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM. Original advisory details: Henry Corrigan-Gibbs discovered that NSS incorrectly handled importing certain curve25519 private keys. An attacker could use this issue to cause NSS to crash.
USN-4061-1: Redis vulnerabilities It was discovered that Redis incorrectly handled the hyperloglog data structure. An attacker could use this issue to cause Redis to crash, resulting in a denial of service, or possibly execute arbitrary code.
USN-4060-1: NSS vulnerabilities Henry Corrigan-Gibbs discovered that NSS incorrectly handled importing certain curve25519 private keys. An attacker could use this issue to cause NSS to crash, resulting in a denial of service, or possibly obtain sensitive information.
USN-4059-1: Squid vulnerabilities It was discovered that Squid incorrectly handled certain SNMP packets. A remote attacker could possibly use this issue to cause memory consumption, leading to a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.
USN-4057-1: Zipios vulnerability Mike Salvatore discovered that Zipios mishandled certain malformed ZIP files. An attacker could use this vulnerability to cause a denial of service or consume system resources.
USN-4058-1: Bash vulnerability It was discovered that Bash incorrectly handled the restricted shell. An attacker could possibly use this issue to escape restrictions and execute any command.
USN-4055-1: flightcrew vulnerabilities Mike Salvatore discovered that FlightCrew improperly handled certain malformed EPUB files. An attacker could potentially use this vulnerability to cause a denial of service.
USN-4056-1: Exiv2 vulnerabilities It was discovered that Exiv2 incorrectly handled certain PSD files. An attacker could possibly use this issue to cause a denial of service. (CVE-2018-19107, CVE-2018-19108) It was discovered that Exiv2 incorrectly handled certain PNG files. An attacker could possibly use this issue to cause a denial of service.
USN-4054-1: Firefox vulnerabilities A sandbox escape was discovered in Firefox. If a user were tricked in to installing a malicious language pack, an attacker could exploit this to gain additional privileges.
USN-4051-2: Apport vulnerability USN-4051-1 fixed a vulnerability in apport. This update provides the corresponding update for Ubuntu 14.04 ESM. Original advisory details: Kevin Backhouse discovered a race-condition when reading the user’s local Apport configuration. This could be used by a local attacker to cause Apport to include arbitrary files in a resulting crash.
USN-4053-1: GVfs vulnerabilities It was discovered that GVfs incorrectly handled the admin backend. Files created or moved by the admin backend could end up with the wrong ownership information, contrary to expectations. This issue only affected Ubuntu 18.04 LTS, Ubuntu 18.10, and Ubuntu 19.04.
USN-4051-1: Apport vulnerability Kevin Backhouse discovered a race-condition when reading the user’s local Apport configuration. This could be used by a local attacker to cause Apport to include arbitrary files in a resulting crash report.
USN-4052-1: Whoopsie vulnerability Kevin Backhouse discovered Whoopsie incorrectly handled very large crash reports. A local attacker could possibly use this issue to cause a denial of service or expose sensitive information.
USN-4049-2: GLib vulnerability USN-4049-1 fixed a vulnerability in GLib. This update provides the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM. Original advisory details: It was discovered that GLib created directories and files without properly restricting permissions. An attacker could possibly use this issue to access sensitive information.
USN-4050-1: ZeroMQ vulnerability It was discovered that ZeroMQ incorrectly handled certain application metadata. A remote attacker could use this issue to cause ZeroMQ to crash, or possibly execute arbitrary code.
USN-4049-1: GLib vulnerability It was discovered that GLib created directories and files without properly restricting permissions. An attacker could possibly use this issue to access sensitive information.
USN-4048-1: Docker vulnerabilities Aleksa Sarai discovered that Docker was vulnerable to a directory traversal attack. An attacker could use this vulnerability to read and write arbitrary files on the host filesystem as root.
USN-4047-1: libvirt vulnerabilities Matthias Gerstner and Ján Tomko discovered that libvirt incorrectly handled certain API calls. An attacker could possibly use this issue to check for arbitrary files or execute arbitrary binaries. In the default installation, attackers would be isolated by the libvirt AppArmor profile.
USN-4046-1: Irssi vulnerabilities It was discovered that Irssi incorrectly handled certain disconnections. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-7054) It was discovered that Irssi incorrectly handled certain requests. USN-4038-4: bzip2 regression
USN-4038-1 fixed a vulnerability in bzip2. The update introduced a regression causing bzip2 to incorrect raises CRC errors for some files. This update provides the corresponding update for Ubuntu 12.04 ESM and 14.04 ESM. We apologize for the inconvenience. USN-4038-3: bzip2 regression
USN-4038-1 fixed a vulnerability in bzip2. The update introduced a regression causing bzip2 to incorrect raises CRC errors for some files. We apologize for the inconvenience. Original advisory details: It was discovered that bzip2 incorrectly handled certain files. An attacker could possibly use this issue to execute arbitrary code.
USN-4045-1: Thunderbird vulnerabilities A type confusion bug was discovered in Thunderbird. If a user were tricked in to opening a specially crafted website in a browsing context, an attacker could exploit this by causing a denial of service or executing arbitrary code.
USN-4044-1: ZNC vulnerability Fix vulnerability where an authenticated non-admin user could load a module with a crafted name, then escalate privileges and run arbitrary code.
USN-4043-1: Django vulnerabilities It was discovered that Django incorrectly handled certain inputs. An attacker could possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 18.04 LTS, Ubuntu 18.10 and Ubuntu 19.04. (CVE-2019-12308) Gavin Wahl discovered that Django incorrectly handled HTTP detection when used behind a reverse-proxy.

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