========================================================================== Ubuntu Security Notice USN-6402-1 October 02, 2023
libtommath vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 23.04 - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS (Available with Ubuntu Pro) - Ubuntu 16.04 LTS (Available with Ubuntu Pro) Summary: LibTomMatch could be made to execute arbitrary code or denial of service if it received a specially crafted input. Software Description: - libtommath: multiple-precision integer library [development files] Details: It was discovered that LibTomMath incorrectly handled certain inputs. An attacker could possibly use this issue to execute arbitrary code and cause a denial of service (DoS). Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 23.04: libtommath1 1.2.0-6ubuntu0.23.04.1 Ubuntu 22.04 LTS: libtommath1 1.2.0-6ubuntu0.22.04.1 Ubuntu 20.04 LTS: libtommath1 1.2.0-3ubuntu0.1 Ubuntu 18.04 LTS (Available with Ubuntu Pro): libtommath1 1.0.1-1ubuntu0.1~esm1 Ubuntu 16.04 LTS (Available with Ubuntu Pro): libtommath0 0.42.0-1.2ubuntu0.1~esm1 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-6402-1 CVE-2023-36328 Package Information: https://launchpad.net/ubuntu/+source/libtommath/1.2.0-6ubuntu0.23.04.1 https://launchpad.net/ubuntu/+source/libtommath/1.2.0-6ubuntu0.22.04.1 https://launchpad.net/ubuntu/+source/libtommath/1.2.0-3ubuntu0.1
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