Evgeny Legerov discovered that zlib incorrectly handled memory when performing certain inflate operations. An attacker could use this issue to cause zlib to crash, resulting in a denial of service, or possibly execute arbitrary code.
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "binaries": [ { "zlib1g-dbg": "1:1.2.8.dfsg-1ubuntu1.1+esm2", "zlib-bin": "1:1.2.8.dfsg-1ubuntu1.1+esm2", "lib64z1": "1:1.2.8.dfsg-1ubuntu1.1+esm2", "zlib1g-dev": "1:1.2.8.dfsg-1ubuntu1.1+esm2", "zlib1g-udeb-dbgsym": "1:1.2.8.dfsg-1ubuntu1.1+esm2", "lib64z1-dev": "1:1.2.8.dfsg-1ubuntu1.1+esm2", "zlib1g": "1:1.2.8.dfsg-1ubuntu1.1+esm2", "zlib-bin-dbgsym": "1:1.2.8.dfsg-1ubuntu1.1+esm2", "lib32z1-dev-dbgsym": "1:1.2.8.dfsg-1ubuntu1.1+esm2", "libx32z1-dev": "1:1.2.8.dfsg-1ubuntu1.1+esm2", "libx32z1": "1:1.2.8.dfsg-1ubuntu1.1+esm2", "zlib1g-udeb": "1:1.2.8.dfsg-1ubuntu1.1+esm2", "lib64z1-dbgsym": "1:1.2.8.dfsg-1ubuntu1.1+esm2", "zlib1g-dev-dbgsym": "1:1.2.8.dfsg-1ubuntu1.1+esm2", "libx32z1-dev-dbgsym": "1:1.2.8.dfsg-1ubuntu1.1+esm2", "lib32z1-dev": "1:1.2.8.dfsg-1ubuntu1.1+esm2", "lib64z1-dev-dbgsym": "1:1.2.8.dfsg-1ubuntu1.1+esm2", "lib32z1-dbgsym": "1:1.2.8.dfsg-1ubuntu1.1+esm2", "libx32z1-dbgsym": "1:1.2.8.dfsg-1ubuntu1.1+esm2", "zlib1g-dbgsym": "1:1.2.8.dfsg-1ubuntu1.1+esm2", "lib32z1": "1:1.2.8.dfsg-1ubuntu1.1+esm2" } ] }
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "binaries": [ { "zlib1g-dbg": "1:1.2.8.dfsg-2ubuntu4.3+esm2", "lib64z1": "1:1.2.8.dfsg-2ubuntu4.3+esm2", "zlib1g-dev": "1:1.2.8.dfsg-2ubuntu4.3+esm2", "zlib1g-udeb-dbgsym": "1:1.2.8.dfsg-2ubuntu4.3+esm2", "lib64z1-dev": "1:1.2.8.dfsg-2ubuntu4.3+esm2", "zlib1g": "1:1.2.8.dfsg-2ubuntu4.3+esm2", "lib32z1-dev-dbgsym": "1:1.2.8.dfsg-2ubuntu4.3+esm2", "libx32z1-dev": "1:1.2.8.dfsg-2ubuntu4.3+esm2", "libx32z1": "1:1.2.8.dfsg-2ubuntu4.3+esm2", "zlib1g-udeb": "1:1.2.8.dfsg-2ubuntu4.3+esm2", "lib64z1-dbgsym": "1:1.2.8.dfsg-2ubuntu4.3+esm2", "zlib1g-dev-dbgsym": "1:1.2.8.dfsg-2ubuntu4.3+esm2", "libx32z1-dev-dbgsym": "1:1.2.8.dfsg-2ubuntu4.3+esm2", "lib32z1-dev": "1:1.2.8.dfsg-2ubuntu4.3+esm2", "lib64z1-dev-dbgsym": "1:1.2.8.dfsg-2ubuntu4.3+esm2", "lib32z1-dbgsym": "1:1.2.8.dfsg-2ubuntu4.3+esm2", "libx32z1-dbgsym": "1:1.2.8.dfsg-2ubuntu4.3+esm2", "zlib1g-dbgsym": "1:1.2.8.dfsg-2ubuntu4.3+esm2", "lib32z1": "1:1.2.8.dfsg-2ubuntu4.3+esm2" } ] }
{ "availability": "No subscription required", "binaries": [ { "libx32z1": "1:1.2.11.dfsg-0ubuntu2.2", "lib32z1": "1:1.2.11.dfsg-0ubuntu2.2", "zlib1g-dbg": "1:1.2.11.dfsg-0ubuntu2.2", "lib64z1": "1:1.2.11.dfsg-0ubuntu2.2", "zlib1g-dev": "1:1.2.11.dfsg-0ubuntu2.2", "zlib1g-udeb": "1:1.2.11.dfsg-0ubuntu2.2", "lib64z1-dev": "1:1.2.11.dfsg-0ubuntu2.2", "lib32z1-dev": "1:1.2.11.dfsg-0ubuntu2.2", "zlib1g": "1:1.2.11.dfsg-0ubuntu2.2", "libx32z1-dev": "1:1.2.11.dfsg-0ubuntu2.2" } ] }