Ubuntu security

USN-6146-1: Netatalk vulnerabilities It was discovered that Netatalk did not properly validate the length of user-supplied data in the DSI structures. A remote attacker could possibly use this issue to execute arbitrary code with the privileges of the user invoking the programs. This issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2021-31439) It was discovered that Netatalk did not properly validate the length of user-supplied data in the ad_addcomment function. A remote attacker could possibly use this issue to execute arbitrary code with root privileges. This issue only affected Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2022-0194) It was discovered that Netatalk did not properly handle errors when parsing AppleDouble entries. A remote attacker could possibly use this issue to execute arbitrary code with root privileges. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 [ more… ]

USN-6145-1: Sysstat vulnerabilities It was discovered that Sysstat incorrectly handled certain arithmetic multiplications. An attacker could use this issue to cause Sysstat to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue was only fixed for Ubuntu 16.04 LTS. (CVE-2022-39377) It was discovered that Sysstat incorrectly handled certain arithmetic multiplications in 64-bit systems, as a result of an incomplete fix for CVE-2022-39377. An attacker could use this issue to cause Sysstat to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2023-33204) Source: USN-6145-1: Sysstat vulnerabilities

USN-6028-2: libxml2 vulnerabilities USN-6028-1 fixed vulnerabilities in libxml2. This update provides the corresponding updates for Ubuntu 23.04. Original advisory details: It was discovered that libxml2 incorrectly handled certain XML files. An attacker could possibly use this issue to cause a crash. (CVE-2022-2309) It was discovered that lixml2 incorrectly handled certain XML files. An attacker could possibly use this issue to cause a crash or execute arbitrary code. (CVE-2023-28484) It was discovered that libxml2 incorrectly handled certain XML files. An attacker could possibly use this issue to cause a crash. (CVE-2023-29469) Source: USN-6028-2: libxml2 vulnerabilities

USN-6144-1: LibreOffice vulnerabilities It was discovered that LibreOffice did not properly validate the number of parameters passed to the formula interpreter, leading to an array index underflow attack. If a user were tricked into opening a specially crafted spreadsheet file, an attacker could possibly use this issue to execute arbitrary code. (CVE-2023-0950) Amel Bouziane-Leblond discovered that LibreOffice did not prompt the user before loading the host document inside an IFrame. If a user were tricked into opening a specially crafted input file, an attacker could possibly use this issue to cause information disclosure or execute arbitrary code. (CVE-2023-2255) Source: USN-6144-1: LibreOffice vulnerabilities

USN-6143-1: Firefox vulnerabilities Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information across domains, or execute arbitrary code. (CVE-2023-34414, CVE-2023-34416, CVE-2023-34417) Jun Kokatsu discovered that Firefox did not properly validate site-isolated process for a document loaded from a data: URL that was the result of a redirect, leading to an open redirect attack. An attacker could possibly use this issue to perform phishing attacks. (CVE-2023-34415) Source: USN-6143-1: Firefox vulnerabilities