Slackware Security Advisory - New zsh packages are available for Slackware 14.0, 14.1, and 14.2 to fix security issues.
75714a129e42d4b4915bf3a86c269a8547eaafbdae3c85324b24890e055279b1
Gentoo Linux Security Advisory 201805-10 - Multiple vulnerabilities have been found in Zsh, the worst of which could allow local attackers to execute arbitrary code. Versions less than 5.5 are affected.
bcc13399a5aa0244fbf2117c08f42b8c6a1cf2d324abe383a04b370e63109d6b
Ubuntu Security Notice 3593-1 - It was discovered that Zsh incorrectly handled certain environment variables. An attacker could possibly use this issue to gain privileged access to the system. This issue only affected Ubuntu 14.04 LTS. It was discovered that Zsh incorrectly handled certain inputs. An attacker could possibly use this to execute arbitrary code. This issue only affected Ubuntu 14.04 LTS. Various other issues were also addressed.
84acebd4d29c3cd2686c174023ec9665be0db2b8567e0c54f82df6013a15303e