========================================================================== Ubuntu Security Notice USN-6894-1 July 11, 2024
apport vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 16.04 LTS Summary: Several security issues were fixed in Apport. Software Description: - apport: automatically generate crash reports for debugging Details: Muqing Liu and neoni discovered that Apport incorrectly handled detecting if an executable was replaced after a crash. A local attacker could possibly use this issue to execute arbitrary code as the root user. (CVE-2021-3899) Gerrit Venema discovered that Apport incorrectly handled connections to Apport sockets inside containers. A local attacker could possibly use this issue to connect to arbitrary sockets as the root user. (CVE-2022-1242) Gerrit Venema discovered that Apport incorrectly handled user settings files. A local attacker could possibly use this issue to cause Apport to consume resources, leading to a denial of service. (CVE-2022-28652) Gerrit Venema discovered that Apport did not limit the amount of logging from D-Bus connections. A local attacker could possibly use this issue to fill up the Apport log file, leading to a denial of service. (CVE-2022-28654) Gerrit Venema discovered that Apport did not filter D-Bus connection strings. A local attacker could possibly use this issue to cause Apport to make arbitrary network connections. (CVE-2022-28655) Gerrit Venema discovered that Apport did not limit the amount of memory being consumed during D-Bus connections. A local attacker could possibly use this issue to cause Apport to consume memory, leading to a denial of service. (CVE-2022-28656) Gerrit Venema discovered that Apport did not disable the python crash handler before chrooting into a container. A local attacker could possibly use this issue to execute arbitrary code. (CVE-2022-28657) Gerrit Venema discovered that Apport incorrectly handled filename argument whitespace. A local attacker could possibly use this issue to spoof arguments to the Apport daemon. (CVE-2022-28658) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 LTS apport 2.20.1-0ubuntu2.30+esm4 Available with Ubuntu Pro python-apport 2.20.1-0ubuntu2.30+esm4 Available with Ubuntu Pro python3-apport 2.20.1-0ubuntu2.30+esm4 Available with Ubuntu Pro In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-6894-1 https://ubuntu.com/security/notices/USN-5427-1 CVE-2021-3899, CVE-2022-1242, CVE-2022-28652, CVE-2022-28654, CVE-2022-28655, CVE-2022-28656, CVE-2022-28657, CVE-2022-28658
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