Ubuntu security

USN-5825-2: PAM regressions USN-5825-1 fixed vulnerabilities in PAM. Unfortunately that update was incomplete and could introduce a regression. This update fixes the problem. We apologize for the inconvenience. Original advisory details: It was discovered that PAM did not correctly restrict login from an IP address that is not resolvable via DNS. An attacker could possibly use this issue to bypass authentication. Source: USN-5825-2: PAM regressions

USN-5841-1: LibTIFF vulnerabilities It was discovered that LibTIFF incorrectly handled certain malformed images. If a user or automated system were tricked into opening a specially crafted image, a remote attacker could crash the application, leading to a denial of service, or possibly execute arbitrary code with user privileges. This issue was only fixed in Ubuntu 14.04 ESM. (CVE-2019-14973, CVE-2019-17546, CVE-2020-35523, CVE-2020-35524, CVE-2022-3970) It was discovered that LibTIFF was incorrectly acessing a data structure when processing data with the tiffcrop tool, which could lead to a heap buffer overflow. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2022-48281) Source: USN-5841-1: LibTIFF vulnerabilities

USN-5840-1: Long Range ZIP vulnerabilities It was discovered that Long Range ZIP incorrectly handled pointers. If a user or an automated system were tricked into opening a certain specially crafted ZIP file, an attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 14.04 ESM, Ubuntu 16.04 ESM, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS. (CVE-2020-25467) It was discovered that Long Range ZIP incorrectly handled pointers. If a user or an automated system were tricked into opening a certain specially crafted ZIP file, an attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2021-27345, CVE-2021-27347) It was discovered that Long Range ZIP incorrectly handled pointers. If a user or an automated system were tricked into opening a certain specially [ more… ]

USN-5839-2: Apache HTTP Server vulnerability USN-5839-1 fixed a vulnerability in Apache. This update provides the corresponding update for Ubuntu 16.04 ESM. Original advisory details: Dimas Fariski Setyawan Putra discovered that the Apache HTTP Server mod_proxy module incorrectly truncated certain response headers. This may result in later headers not being interpreted by the client. (CVE-2022-37436) Source: USN-5839-2: Apache HTTP Server vulnerability

USN-5837-2: Django vulnerability USN-5837-1 fixed a vulnerability in Django. This update provides the corresponding update for Ubuntu 16.04 ESM. Original advisory details: Nick Pope discovered that Django incorrectly handled certain Accept-Language headers. A remote attacker could possibly use this issue to cause Django to consume memory, leading to a denial of service. Source: USN-5837-2: Django vulnerability