Ugrep
Monthly
Heap buffer over-read in ugrep before 7.6.0 allows a local attacker to crash the utility by supplying a malformed .Z (Unix compress) archive file to its LZW decompressor. The flaw, located in src/zopen.c at approximately line 673, causes the decompressor to read exactly one byte past the end of the allocated heap buffer, resulting in a process crash. The CVSS 4.0 vector confirms the impact is limited to availability at the Low severity level with no confidentiality or integrity exposure; no public exploit has been identified at time of analysis.
Heap buffer over-read in ugrep before 7.6.0 allows a local attacker to crash the utility by supplying a malformed .Z (Unix compress) archive file to its LZW decompressor. The flaw, located in src/zopen.c at approximately line 673, causes the decompressor to read exactly one byte past the end of the allocated heap buffer, resulting in a process crash. The CVSS 4.0 vector confirms the impact is limited to availability at the Low severity level with no confidentiality or integrity exposure; no public exploit has been identified at time of analysis.