========================================================================== Ubuntu Security Notice USN-5631-1 September 22, 2022 libjpeg-turbo vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS Summary: Several security issues were fixed in libjpeg-turbo. Software Description: - libjpeg-turbo: library for handling JPEG files Details: It was discovered that libjpeg-turbo incorrectly handled certain EOF characters. An attacker could possibly use this issue to cause libjpeg-turbo to consume resource, leading to a denial of service. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-11813) It was discovered that libjpeg-turbo incorrectly handled certain malformed jpeg files. An attacker could possibly use this issue to cause libjpeg-turbo to crash, resulting in a denial of service. (CVE-2020-17541, CVE-2020-35538) It was discovered that libjpeg-turbo incorrectly handled certain malformed PPM files. An attacker could use this issue to cause libjpeg-turbo to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 20.04 LTS. (CVE-2021-46822) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS: libjpeg-turbo8 2.0.3-0ubuntu1.20.04.3 libturbojpeg 2.0.3-0ubuntu1.20.04.3 Ubuntu 18.04 LTS: libjpeg-turbo8 1.5.2-0ubuntu5.18.04.6 libturbojpeg 1.5.2-0ubuntu5.18.04.6 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-5631-1 CVE-2018-11813, CVE-2020-17541, CVE-2020-35538, CVE-2021-46822 Package Information: https://launchpad.net/ubuntu/+source/libjpeg-turbo/2.0.3-0ubuntu1.20.04.3 https://launchpad.net/ubuntu/+source/libjpeg-turbo/1.5.2-0ubuntu5.18.04.6