========================================================================== Ubuntu Security Notice USN-3495-1 November 27, 2017 optipng vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 17.10 - Ubuntu 17.04 - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS Summary: OptiPNG could be made to crash or run programs as your login if it opened a specially crafted file. Software Description: - optipng: advanced PNG (Portable Network Graphics) optimizer Details: It was discovered that OptiPNG incorrectly handled memory. A remote attacker could use this issue with a specially crafted image file to cause OptiPNG to crash, resulting in a denial of service, or possibly execute arbitrary code. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 17.10: optipng 0.7.6-1ubuntu0.17.10.1 Ubuntu 17.04: optipng 0.7.6-1ubuntu0.17.04.1 Ubuntu 16.04 LTS: optipng 0.7.6-1ubuntu0.16.04.1 Ubuntu 14.04 LTS: optipng 0.6.4-1ubuntu0.14.04.2 In general, a standard system update will make all the necessary changes. References: https://www.ubuntu.com/usn/usn-3495-1 CVE-2017-1000229 Package Information: https://launchpad.net/ubuntu/+source/optipng/0.7.6-1ubuntu0.17.10.1 https://launchpad.net/ubuntu/+source/optipng/0.7.6-1ubuntu0.17.04.1 https://launchpad.net/ubuntu/+source/optipng/0.7.6-1ubuntu0.16.04.1 https://launchpad.net/ubuntu/+source/optipng/0.6.4-1ubuntu0.14.04.2