This results in excessive CPU consumption and prevents the process from completing.
An attacker can trigger this behavior by supplying a malicious patch file, causing the utility to become unresponsive and require manual termination.
This issue has been fixed in the commit faba04ef4f2b410257f76c1b9dc85e350929c4b9
Metrics
Affected Vendors & Products
No advisories yet.
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
Tue, 10 Nov 2026 21:30:00 +0000
| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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Thu, 09 Jul 2026 12:15:00 +0000
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| First Time appeared |
Gnu
Gnu patch |
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| Vendors & Products |
Gnu
Gnu patch |
Thu, 09 Jul 2026 10:45:00 +0000
| Type | Values Removed | Values Added |
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| Description | GNU patch is vulnerable to a denial of service (DoS) due to improper validation of hunk (single block of changes in diff) line offsets in unified-diff input. A specially crafted patch can specify an extremely large line number, causing the application to enter an effectively infinite processing loop while attempting to locate the requested position. This results in excessive CPU consumption and prevents the process from completing. An attacker can trigger this behavior by supplying a malicious patch file, causing the utility to become unresponsive and require manual termination. This issue has been fixed in the commit faba04ef4f2b410257f76c1b9dc85e350929c4b9 | |
| Title | Loop with Unreachable Exit Condition in GNU patch | |
| Weaknesses | CWE-835 | |
| References |
| |
| Metrics |
cvssV4_0
|
Projects
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Status: PUBLISHED
Assigner: CERT-PL
Published:
Updated: 2026-07-09T12:21:39.125Z
Reserved: 2026-06-20T10:58:09.261Z
Link: CVE-2026-56289
Updated: 2026-07-09T12:20:56.449Z
Status : Analyzed
Published: 2026-07-09T11:16:40.840
Modified: 2026-10-25T17:10:00.197
Link: CVE-2026-56289
No data.
OpenCVE Enrichment
Updated: 2026-08-01T14:45:06Z