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CVE-2023-43641: Coordinated Disclosure: 1-Click RCE on GNOME (CVE-2023-43641)

libcue provides an API for parsing and extracting data from CUE sheets. Versions 2.2.1 and prior are vulnerable to out-of-bounds array access. A user of the GNOME desktop environment can be exploited by downloading a cue sheet from a malicious webpage. Because the file is saved to `~/Downloads`, it is then automatically scanned by tracker-miners. And because it has a .cue filename extension, tracker-miners use libcue to parse the file. The file exploits the vulnerability in libcue to gain code execution.

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Ubuntu Security Notice USN-6421-1

Ubuntu Security Notice 6421-1 - It was discovered that Bind incorrectly handled certain control channel messages. A remote attacker with access to the control channel could possibly use this issue to cause Bind to crash, resulting in a denial of service.

Ubuntu Security Notice USN-6420-1

Ubuntu Security Notice 6420-1 - It was discovered that Vim incorrectly handled memory when opening certain files. If an attacker could trick a user into opening a specially crafted file, it could cause Vim to crash, or possibly execute arbitrary code. This issue only affected Ubuntu 22.04 LTS. It was discovered that Vim incorrectly handled memory when opening certain files. If an attacker could trick a user into opening a specially crafted file, it could cause Vim to crash, or possibly execute arbitrary code. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS.

glibc ld.so Local Privilege Escalation

Dubbed Looney Tunables, Qualys discovered a buffer overflow vulnerability in the glibc dynamic loader's processing of the GLIBC_TUNABLES environment variable. This vulnerability was introduced in April 2021 (glibc 2.34) by commit 2ed18c.

Ubuntu Security Notice USN-6416-2

Ubuntu Security Notice 6416-2 - It was discovered that the IPv6 implementation in the Linux kernel contained a high rate of hash collisions in connection lookup table. A remote attacker could use this to cause a denial of service. Daniël Trujillo, Johannes Wikner, and Kaveh Razavi discovered that some AMD processors utilising speculative execution and branch prediction may allow unauthorised memory reads via a speculative side-channel attack. A local attacker could use this to expose sensitive information, including kernel memory.

Ubuntu Security Notice USN-6396-2

Ubuntu Security Notice 6396-2 - It was discovered that some AMD x86-64 processors with SMT enabled could speculatively execute instructions using a return address from a sibling thread. A local attacker could possibly use this to expose sensitive information. Daniel Moghimi discovered that some Intel Processors did not properly clear microarchitectural state after speculative execution of various instructions. A local unprivileged user could use this to obtain to sensitive information.

Ubuntu Security Notice USN-6419-1

Ubuntu Security Notice 6419-1 - Hong Phat Ly discovered that jQuery UI did not properly manage parameters from untrusted sources, which could lead to arbitrary web script or HTML code injection. A remote attacker could possibly use this issue to perform a cross-site scripting attack. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. Esben Sparre Andreasen discovered that jQuery UI did not properly handle values from untrusted sources in the Datepicker widget. A remote attacker could possibly use this issue to perform a cross-site scripting attack and execute arbitrary code. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS.

Ubuntu Security Notice USN-6418-1

Ubuntu Security Notice 6418-1 - It was discovered that Node.js incorrectly handled certain inputs. If a user or an automated system were tricked into opening a specially crafted input file, a remote attacker could possibly use this issue to cause a denial of service. This issue was only fixed in Ubuntu 20.04 LTS. Vít Šesták discovered that Node.js incorrectly handled certain inputs. If a user or an automated system were tricked into opening a specially crafted input file, a remote attacker could possibly use this issue to execute arbitrary code.