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Advisories

ugrep before 7.6.0 Heap Buffer Over-read via .Z decompression

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severity
medium
date
Affecting

  • ugrep >= 0, < 7.6.0

CWE
  • CWE-125 Out-of-bounds Read
CVSS
4.8
CVSS V4 Vector
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
Credit
Vlatko Kosturjak
Description
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.

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