========================================================================== Ubuntu Security Notice USN-4277-1 February 11, 2020
libexif vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 19.10 - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS - Ubuntu 14.04 ESM - Ubuntu 12.04 ESM Summary: Several security issues were fixed in libexif. Software Description: - libexif: library to parse EXIF files Details: Liu Bingchang discovered that libexif incorrectly handled certain files. An attacker could possibly use this issue to access sensitive information or cause a denial of service. This issue only affected Ubuntu 12.04 ESM, Ubuntu 14.04 ESM and Ubuntu 16.04 LTS. (CVE-2016-6328) Lili Xu and Bingchang Liu discovered that libexif incorrectly handled certain files. An attacker could possibly use this issue to access sensitive information or cause a denial of service. This issue only affected Ubuntu 12.04 ESM, Ubuntu 14.04 ESM and Ubuntu 16.04 LTS. (CVE-2017-7544) It was discovered that libexif incorrectly handled certain files. An attacker could possibly use this issue to execute arbitrary code. (CVE-2019-9278) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 19.10: libexif12 0.6.21-5.1ubuntu0.1 Ubuntu 18.04 LTS: libexif12 0.6.21-4ubuntu0.1 Ubuntu 16.04 LTS: libexif12 0.6.21-2ubuntu0.1 Ubuntu 14.04 ESM: libexif12 0.6.21-1ubuntu1+esm1 Ubuntu 12.04 ESM: libexif12 0.6.20-2ubuntu0.2 After a standard system update you need to restart your session to effect the necessary changes. References: https://usn.ubuntu.com/4277-1 CVE-2016-6328, CVE-2017-7544, CVE-2019-9278 Package Information: https://launchpad.net/ubuntu/+source/libexif/0.6.21-5.1ubuntu0.1 https://launchpad.net/ubuntu/+source/libexif/0.6.21-4ubuntu0.1 https://launchpad.net/ubuntu/+source/libexif/0.6.21-2ubuntu0.1
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