An issue was discovered in LibSass through 3.5.4. An out-of-bounds read of a memory region was found in the function Sass::Prelexer::exactly() which could be leveraged by an attacker to disclose information or manipulated to read from unmapped memory causing a denial of service.
{ "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "3.4.8-1ubuntu0.1~esm1", "binary_name": "libsass-dev" }, { "binary_version": "3.4.8-1ubuntu0.1~esm1", "binary_name": "libsass0" }, { "binary_version": "3.4.8-1ubuntu0.1~esm1", "binary_name": "libsass0-dbg" } ] }