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Ubuntu 18.04 LTS: 4107-1 Critical: GIFLIB Denial of Service

Several security issues were fixed in GIFLIB.. =========================================================================Ubuntu Security Notice USN-4107-1 August 20, 2019 giflib vulnerabilities ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 19.04 - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS Summary: Several security issues were fixed in GIFLIB. Software Description: - giflib: library for GIF images (utilities) Details: It was discovered that GIFLIB incorrectly handled certain GIF files. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS. (CVE-2016-3977) It was discovered that GIFLIB incorrectly handled certain GIF files. An attacker could possibly use this issue to cause a denial of service. (CVE-2018-11490, CVE-2019-15133) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 19.04: giflib-tools 5.1.4-3ubuntu0.1 libgif7 5.1.4-3ubuntu0.1 Ubuntu 18.04 LTS: giflib-tools 5.1.4-2ubuntu0.1 libgif7 5.1.4-2ubuntu0.1 Ubuntu 16.04 LTS: giflib-tools 5.1.4-0.3~16.04.1 libgif7 5.1.4-0.3~16.04.1 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-4107-1 CVE-2016-3977, CVE-2018-11490, CVE-2019-15133 Package Information: https://launchpad.net/ubuntu/+source/giflib/5.1.4-3ubuntu0.1 https://launchpad.net/ubuntu/+source/giflib/5.1.4-2ubuntu0.1 https://launchpad.net/ubuntu/+source/giflib/5.1.4-0.3~16.04.1 . Ubuntu has issued critical patches for GIFLIB security vulnerabilities to prevent potential denial of service attacks. Users should apply these updates promptly to secure systems.. giflib vulnerabilities, Ubuntu security updates, denial of service fix. .LinuxSecurity.com Team

Aug 20, 2019 Ubuntu