Ubuntu security

USN-5959-1: Kerberos vulnerabilities It was discovered that Kerberos incorrectly handled memory when processing KDC data, which could lead to a NULL pointer dereference. An attacker could possibly use this issue to cause a denial of service or have other unspecified impacts. (CVE-2021-36222, CVE-2021-37750) Source: USN-5959-1: Kerberos vulnerabilities

USN-5958-1: FFmpeg vulnerabilities It was discovered that FFmpeg could be made to dereference a null pointer. An attacker could possibly use this to cause a denial of service via application crash. These issues only affected Ubuntu 16.04 ESM, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2022-3109, CVE-2022-3341) It was discovered that FFmpeg could be made to access an out-of-bounds frame by the Apple RPZA encoder. An attacker could possibly use this to cause a denial of service via application crash or access sensitive information. This issue only affected Ubuntu 20.04 LTS and Ubuntu 22.10. (CVE-2022-3964) It was discovered that FFmpeg could be made to access an out-of-bounds frame by the QuickTime encoder. An attacker could possibly use this to cause a denial of service via application crash or access sensitive information. This issue only affected Ubuntu 22.10. [ more… ]

USN-5855-2: ImageMagick vulnerabilities USN-5855-1 fixed a vulnerability in ImageMagick. This update provides the corresponding update for Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, and Ubuntu 22.10. Original advisory details: It was discovered that ImageMagick incorrectly handled certain PNG images. If a user or automated system were tricked into opening a specially crafted PNG file, an attacker could use this issue to cause ImageMagick to stop responding, resulting in a denial of service, or possibly obtain the contents of arbitrary files by including them into images. Source: USN-5855-2: ImageMagick vulnerabilities

USN-5956-2: PHPMailer vulnerability USN-5956-1 fixed vulnerabilities in PHPMailer. It was discovered that the fix for CVE-2017-11503 was incomplete. This update fixes the problem. Original advisory details: Dawid Golunski discovered that PHPMailer was not properly escaping user input data used as arguments to functions executed by the system shell. An attacker could possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 16.04 ESM. (CVE-2016-10033, CVE-2016-10045) It was discovered that PHPMailer was not properly escaping characters in certain fields of the code_generator.php example code. An attacker could possibly use this issue to conduct cross-site scripting (XSS) attacks. This issue was only fixed in Ubuntu 16.04 ESM and Ubuntu 18.04 ESM. (CVE-2017-11503) Yongxiang Li discovered that PHPMailer was not properly converting relative paths provided as user input when adding attachments to messages, which could lead to relative image URLs [ more… ]

USN-5957-1: LibreCAD vulnerabilities Cody Sixteen discovered that LibreCAD incorrectly handled memory when parsing DXF files. An attacker could use this issue to cause LibreCAD to crash, leading to a denial of service. This issue only affected Ubuntu 16.04 ESM and Ubuntu 18.04 ESM. (CVE-2018-19105) Lilith of Cisco Talos discovered that LibreCAD incorrectly handled memory when parsing DWG files. An attacker could use this issue to cause LibreCAD to crash, leading to a denial of service, or possibly execute arbitrary code. (CVE-2021-21898, CVE-2021-21899) Lilith of Cisco Talos discovered that LibreCAD incorrectly handled memory when parsing DRW files. An attacker could use this issue to cause LibreCAD to crash, leading to a denial of service, or possibly execute arbitrary code. (CVE-2021-21900) Albin Eldstål-Ahrens discovered that LibreCAD incorrectly handled memory when parsing JWW files. An attacker could use this issue to cause LibreCAD [ more… ]