{"id":"CVE-2018-6951","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-6951","generatedAt":"2026-10-28T21:20:56.291Z","title":"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.","description":"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.","published":"2018-02-13T19:29:01.000Z","lastModified":"2026-06-17T02:02:30.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":7.5,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-476"],"affected":["gnu/patch","canonical/ubuntu linux"],"epss":{"score":0.08359,"percentile":0.94935,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.06492,"percentile":0.9354},{"date":"2026-09-22","score":0.08427,"percentile":0.94747}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (8.36%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://www.securityfocus.com/bid/103044","tags":["Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://git.savannah.gnu.org/cgit/patch.git/commit/?id=f290f48a621867084884bfff87f8093c15195e6a","tags":["Patch","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://savannah.gnu.org/bugs/index.php?53132","tags":["Issue Tracking","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://security.gentoo.org/glsa/201904-17","source":"cve@mitre.org"},{"url":"https://usn.ubuntu.com/3624-1/","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/103044","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.savannah.gnu.org/cgit/patch.git/commit/?id=f290f48a621867084884bfff87f8093c15195e6a","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://savannah.gnu.org/bugs/index.php?53132","tags":["Issue Tracking","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/201904-17","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3624-1/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-6951","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}