CVE-2026-56288

5.5 Moyenne

Publiée le 09/07/2026 à 13:16 · Modifiée le 13/07/2026 à 16:08 · Analysée par le NVD · Source : cvd@cert.pl

Description

GNU patch is vulnerable to a NULL pointer dereference when processing a specially crafted unified-diff patch file. Improper handling of consecutive end-of-file newline markers can corrupt internal hunk (single block of changes in diff) data structures, causing the application to pass a NULL pointer to fwrite() during patch processing. An attacker can trigger this condition with a malicious patch file, causing the utility to crash and resulting in a denial of service. This issue has been fixed in the commit e6d6a4e021660679d7fc9150f981d4920f722313

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Produits concernés

GNU patch

Scores CVSS

Version	Score	Source	Vecteur
4.0	4.6 Moyenne	cvd@cert.pl	`CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X`
3.1	5.5 Moyenne	nvd@nist.gov (NVD)	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H`

Faiblesses (CWE)

CWE-476

Références

https://cert.pl/en/posts/2026/07/CVE-2026-56288 Third Party Advisory
https://cgit.git.savannah.gnu.org/cgit/patch.git/ PatchProduct
https://cgit.git.savannah.gnu.org/cgit/patch.git/commit/?id=e6d6a4e021660679d7fc9150f981d4920f722313 Patch

CVE-2026-56288

Description

Produits concernés

Scores CVSS

Faiblesses (CWE)

Références

Ailleurs