Description (CNA)
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
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| GNU / patch | affected 0 through 2.8.0 |
CWE
CWE-476
References
- https://cert.pl/en/posts/2026/07/CVE-2026-56288
- https://cgit.git.savannah.gnu.org/cgit/patch.git/
- https://cgit.git.savannah.gnu.org/cgit/patch.git/commit/?id=e6d6a4e021660679d7fc9150f981d4920f722313
ADP enrichment
No English description supplied.
No references supplied.