Ubuntu security

USN-5892-2: NSS vulnerability USN-5892-1 fixed a vulnerability in NSS. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Original advisory details: Christian Holler discovered that NSS incorrectly handled certain PKCS 12 certificated bundles. A remote attacker could use this issue to cause NSS to crash, leading to a denial of service, or possibly execute arbitrary code. (CVE-2023-0767) Source: USN-5892-2: NSS vulnerability

USN-5672-2: GMP vulnerability USN-5672-1 fixed a vulnerability in GMP. This update provides the corresponsing update for Ubuntu 14.04 ESM. Original advisory details: It was discovered that GMP did not properly manage memory on 32-bit platforms when processing a specially crafted input. An attacker could possibly use this issue to cause applications using GMP to crash, resulting in a denial of service. Source: USN-5672-2: GMP vulnerability

USN-5922-1: FriBidi vulnerabilities It was discovered that FriBidi incorrectly handled the processing of input strings, resulting in memory corruption. An attacker could possibly use this issue to cause FriBidi to crash, resulting in a denial of service, or potentially execute arbitrary code. (CVE-2022-25308) It was discovered that FriBidi incorrectly validated input data to its CapRTL unicode encoder, resulting in memory corruption. An attacker could possibly use this issue to cause FriBidi to crash, resulting in a denial of service, or potentially execute arbitrary code. (CVE-2022-25309) It was discovered that FriBidi incorrectly handled empty input when removing marks from unicode strings. An attacker could possibly use this to cause FriBidi to crash, resulting in a denial of service, or potentially execute arbitrary code. (CVE-2022-25310) Source: USN-5922-1: FriBidi vulnerabilities

USN-5767-3: Python vulnerability USN-5767-1 fixed vulnerabilities in PythonX. This update fixes the problem for Ubuntu 18.04 LTS. Original advisory details: Nicky Mouha discovered that Python incorrectly handled certain SHA-3 internals. An attacker could possibly use this issue to cause a crash or execute arbitrary code. (CVE-2022-37454) Source: USN-5767-3: Python vulnerability

USN-5921-1: rsync vulnerabilities Koen van Hove discovered that the rsync client incorrectly validated filenames returned by servers. If a user or automated system were tricked into connecting to a malicious server, a remote attacker could use this issue to write arbitrary files, and possibly excalate privileges. Source: USN-5921-1: rsync vulnerabilities