USN-4968-1: LZ4 vulnerability
26 May 2021
LZ4 could be made to crash or run programs if it opened a specially crafted file.
- lz4 - Extremely fast compression algorithm
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
The problem can be corrected by updating your system to the following package versions:
In general, a standard system update will make all the necessary changes.
- USN-4968-2: lz4, liblz4-1, liblz4-dev, liblz4-tool