ugrep before 7.6.0 Heap Buffer Over-read via .Z decompression
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4.8epss 0.1%
exploitation probability
0.1%top 98% of all CVEs
observed exploitation
nono source reports it
ugrep before 7.6.0 contains a heap buffer over-read vulnerability in the LZW decompressor when processing crafted .Z archive files. Attackers can supply malformed .Z files that cause the decompressor to read one byte past the allocated heap buffer, potentially crashing the process.
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Affected products
Genivia · ugrepReferences
https://github.com/Genivia/ugrephttps://github.com/Genivia/ugrep/blob/v7.5.0/src/zopen.c#L673https://github.com/Genivia/ugrep/commit/c12849a11264e2c81c860bf78ee9039772f307a4https://github.com/Genivia/ugrep/issues/511https://github.com/Genivia/ugrep/releases/tag/v7.6.0https://www.vulncheck.com/advisories/ugrep-before-7.6.0-heap-buffer-over-read-via-z-decompression