Ubuntu Security Notice 4638-1 - It was discovered that c-ares incorrectly handled certain DNS requests. An attacker could possibly use this issue to cause a denial of service.
44f58c24d1c620f3c03815521bb69811Ubuntu Security Notice 4637-1 - Multiple security issues were discovered in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information across origins, bypass security restrictions, conduct phishing attacks, conduct cross-site scripting attacks, bypass Content Security Policy restrictions, conduct DNS rebinding attacks, or execute arbitrary code.
08275d480c462e399d22748a92c497efUbuntu Security Notice 4636-1 - It was discovered that LibVNCServer incorrectly handled certain internals. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. Vino package ships with a LibVNCServer source and all listed releases were affected for this package.
c83ff523d65d2e8a8c0cdcee374049ceUbuntu Security Notice 4635-1 - Demi Obenour discovered that Kerberos incorrectly handled certain ASN.1. An attacker could possibly use this issue to cause a denial of service.
5a3d095b1a6ac63fd252bba333f2a7e2Ubuntu Security Notice 4633-1 - Peter Eisentraut discovered that PostgreSQL incorrectly handled connection security settings. Client applications could possibly be connecting with certain security parameters dropped, contrary to expectations. Etienne Stalmans discovered that PostgreSQL incorrectly handled the security restricted operation sandbox. An authenticated remote attacker could possibly use this issue to execute arbitrary SQL functions as a superuser. Various other issues were also addressed.
7a1f8a3e69e9532a6647338dbaa42eecUbuntu Security Notice 4634-1 - It was discovered that OpenLDAP incorrectly handled certain malformed inputs. A remote attacker could possibly use this issue to cause OpenLDAP to crash, resulting in a denial of service.
ac51b434ea0844b87b92c98d0c3e8907Ubuntu Security Notice 4607-2 - USN-4607-1 fixed vulnerabilities and added features in OpenJDK. Unfortunately, that update introduced a regression that could cause TLS connections with client certificate authentication to fail in some situations. This update fixes the problem. Various other issues were also addressed.
3edc6eb21eea64bc95aec575369eb14bUbuntu Security Notice 4632-1 - It was discovered that the SLiRP networking implementation of the QEMU emulator did not properly manage memory under certain circumstances. An attacker could use this to cause a heap-based buffer overflow or other out- of-bounds access, which can lead to a denial of service or potentially execute arbitrary code. It was discovered that the SLiRP networking implementation of the QEMU emulator misuses snprintf return values. An attacker could use this to cause a denial of service or potentially execute arbitrary code. Various other issues were also addressed.
4a371d27b914f9fc59555d745600a57fUbuntu Security Notice 4631-1 - It was discovered that libmaxminddb incorrectly handled certain memory operations. A remote attacker could possibly use this issue to cause applications using libmaxminddb to crash, resulting in a denial of service.
96a1b75e7558c82535b3824b6bd2bd8eUbuntu Security Notice 4171-6 - USN-4171-1 fixed vulnerabilities in Apport. The update caused a regression when handling configuration files. This update fixes the problem, and also introduces further hardening measures. Kevin Backhouse discovered Apport would read its user-controlled settings file as the root user. This could be used by a local attacker to possibly crash Apport or have other unspecified consequences. Sander Bos discovered a race-condition in Apport during core dump creation. This could be used by a local attacker to generate a crash report for a privileged process that is readable by an unprivileged user. Sander Bos discovered Apport mishandled crash dumps originating from containers. This could be used by a local attacker to generate a crash report for a privileged process that is readable by an unprivileged user. Sander Bos discovered Apport mishandled lock-file creation. This could be used by a local attacker to cause a denial of service against Apport. Kevin Backhouse discovered Apport read various process-specific files with elevated privileges during crash dump generation. This could could be used by a local attacker to generate a crash report for a privileged process that is readable by an unprivileged user. Various other issues were also addressed.
bf6d214866122a7e4c574dda44e1251bUbuntu Security Notice 4628-2 - USN-4628-1 provided updated Intel Processor Microcode. Unfortunately, that update prevented certain processors in the Intel Tiger Lake family from booting successfully. This update reverts the microcode update for the Tiger Lake processor family. Please note that the 'dis_ucode_ldr' kernel command line option can be added in the boot menu to disable microcode loading for system recovery. Various other issues were also addressed.
b4d60c46b0b2f4b8fe17f44c9de38a83Ubuntu Security Notice 4622-2 - USN-4622-1 fixed a vulnerability in OpenLDAP. This update provides the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM. It was discovered that OpenLDAP incorrectly handled certain network packets. A remote attacker could use this issue to cause OpenLDAP to crash, resulting in a denial of service, or possibly execute arbitrary code. Various other issues were also addressed.
d420329a2e9b3171873d541b809a4af3Ubuntu Security Notice 4630-1 - Hanno Boeck discovered that Raptor incorrectly handled certain memory operations. If a user were tricked into opening a specially crafted document in an application linked against Raptor, an attacker could cause the application to crash, resulting in a denial of service, or possibly execute arbitrary code.
fac6aed0d119d65246e14c49596e33d7Ubuntu Security Notice 4629-1 - Michael Chapman discovered that MoinMoin incorrectly handled certain cache actions. An attacker could possibly use this issue to execute arbitrary code. Catarina Leite discovered that MoinMoin incorrectly handled certain SVG files. An attacker could possibly use this issue to execute arbitrary code.
21e4e64c20e4a3fd946601540d00436bUbuntu Security Notice 4628-1 - Moritz Lipp, Michael Schwarz, Andreas Kogler, David Oswald, Catherine Easdon, Claudio Canella, and Daniel Gruss discovered that the Intel Running Average Power Limit feature of some Intel processors allowed a side- channel attack based on power consumption measurements. A local attacker could possibly use this to expose sensitive information. Ezra Caltum, Joseph Nuzman, Nir Shildan and Ofir Joseff discovered that some Intel Processors did not properly remove sensitive information before storage or transfer in some situations. A local attacker could possibly use this to expose sensitive information. Various other issues were also addressed.
d5b28c9aff5b23a7f8ad7249a7633849Ubuntu Security Notice 4627-1 - Moritz Lipp, Michael Schwarz, Andreas Kogler, David Oswald, Catherine Easdon, Claudio Canella, and Daniel Gruss discovered that the Intel Running Average Power Limit driver in the Linux kernel did not properly restrict access to power data. A local attacker could possibly use this to expose sensitive information.
68280722e12e55bac74350f6bcd8f78aUbuntu Security Notice 4626-1 - Simon Scannell discovered that the bpf verifier in the Linux kernel did not properly calculate register bounds for certain operations. A local attacker could use this to expose sensitive information or gain administrative privileges. Moritz Lipp, Michael Schwarz, Andreas Kogler, David Oswald, Catherine Easdon, Claudio Canella, and Daniel Gruss discovered that the Intel Running Average Power Limit driver in the Linux kernel did not properly restrict access to power data. A local attacker could possibly use this to expose sensitive information. Various other issues were also addressed.
826290928fcd6e76f591d4feea48dd2fUbuntu Security Notice 4625-1 - A use-after-free was discovered in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could exploit this to execute arbitrary code.
9ce2e1d9656cdc58bfb93548e5536c86Ubuntu Security Notice 4624-1 - It was discovered that libexif incorrectly handled certain inputs. An attacker could possibly use this issue to cause unexpected behaviours, or execute arbitrary code.
7a05bea2012947c33ca0fa3a8095b12dUbuntu Security Notice 4623-1 - Ken Gaillot discovered that Pacemaker incorrectly handled IPC communications permissions. A local attacker could possibly use this issue to bypass ACL restrictions and execute arbitrary code as root.
a404c7158aa20923e972db53c69bdbccUbuntu Security Notice 4622-1 - It was discovered that OpenLDAP incorrectly handled certain network packets. A remote attacker could use this issue to cause OpenLDAP to crash, resulting in a denial of service, or possibly execute arbitrary code.
c9c68a915194629894262084656686cfUbuntu Security Notice 4621-1 - It was discovered that netqmail did not properly handle certain input. Both remote and local attackers could use this vulnerability to cause netqmail to crash or execute arbitrary code. It was discovered that netqmail did not properly handle certain input when validating email addresses. An attacker could use this to bypass email address validation. Various other issues were also addressed.
7787dcf98d9b4adb884f3713beabae3aUbuntu Security Notice 4620-1 - It was discovered that phpLDAPadmin didn't properly sanitize before being echoed to the user. A remote attacker could inject arbitrary HTML/Javascript code in a user's context and cause a crash, resulting in denial of service or potential execution of arbitrary code.
1328c14e055c0263156c30ab138a2dc9Ubuntu Security Notice 4599-3 - USN-4599-1 and USN-4599-2 fixed vulnerabilities in Firefox. The updates introduced various minor regressions. This update fixes the problem. Multiple security issues were discovered in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, spoof the prompt for opening an external application, obtain sensitive information, or execute arbitrary code. Various other issues were also addressed.
25dce6875e3b7e54bf60434d0576c6d1Ubuntu Security Notice 4619-1 - Mário Areias discovered that dom4j did not properly validate XML document elements. An attacker could exploit this with a crafted XML file to cause dom4j to crash, resulting in a denial of service, or possibly execute arbitrary code.
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