NULL Pointer Dereference Affecting patch package, versions <2.7.6-7
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-ECHOLATEST-PATCH-17982162
- published15 Jul 2026
- disclosed13 Feb 2018
Introduced: 13 Feb 2018
CVE-2018-6951 (opens in a new tab)How to fix?
Upgrade Echo:latest patch to version 2.7.6-7 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream patch package and not the patch package as distributed by Echo.
See How to fix? for Echo:latest relevant fixed versions and status.
An issue was discovered in GNU patch through 2.7.6. There is a segmentation fault, associated with a NULL pointer dereference, leading to a denial of service in the intuit_diff_type function in pch.c, aka a "mangled rename" issue.
References
- https://www.cve.org/CVERecord?id=CVE-2018-6951
- http://www.securityfocus.com/bid/103044
- https://git.savannah.gnu.org/cgit/patch.git/commit/?id=f290f48a621867084884bfff87f8093c15195e6a
- https://savannah.gnu.org/bugs/index.php?53132
- https://security.gentoo.org/glsa/201904-17
- https://usn.ubuntu.com/3624-1/