USN-4968-1 fixed a vulnerability in LZ4. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.
Original advisory details:
It was discovered that LZ4 incorrectly handled certain memory operations. If a user or automated system were tricked into uncompressing a specially- crafted LZ4 file, a remote attacker could use this issue to cause LZ4 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": [ { "binary_version": "0.0~r114-2ubuntu1+esm2", "binary_name": "liblz4-1" }, { "binary_version": "0.0~r114-2ubuntu1+esm2", "binary_name": "liblz4-1-dbg" }, { "binary_version": "0.0~r114-2ubuntu1+esm2", "binary_name": "liblz4-1-dbgsym" }, { "binary_version": "0.0~r114-2ubuntu1+esm2", "binary_name": "liblz4-dev" }, { "binary_version": "0.0~r114-2ubuntu1+esm2", "binary_name": "liblz4-dev-dbgsym" }, { "binary_version": "0.0~r114-2ubuntu1+esm2", "binary_name": "liblz4-tool" }, { "binary_version": "0.0~r114-2ubuntu1+esm2", "binary_name": "liblz4-tool-dbgsym" } ] }
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "binaries": [ { "binary_version": "0.0~r131-2ubuntu2+esm1", "binary_name": "liblz4-1" }, { "binary_version": "0.0~r131-2ubuntu2+esm1", "binary_name": "liblz4-1-dbg" }, { "binary_version": "0.0~r131-2ubuntu2+esm1", "binary_name": "liblz4-1-dbgsym" }, { "binary_version": "0.0~r131-2ubuntu2+esm1", "binary_name": "liblz4-dev" }, { "binary_version": "0.0~r131-2ubuntu2+esm1", "binary_name": "liblz4-dev-dbgsym" }, { "binary_version": "0.0~r131-2ubuntu2+esm1", "binary_name": "liblz4-tool" }, { "binary_version": "0.0~r131-2ubuntu2+esm1", "binary_name": "liblz4-tool-dbgsym" } ] }