CVE-2018-6951: Null Pointer Dereference
First published: Tue Feb 13 2018(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/patch | <=2.7.6-7 | |
| GNU Patch | <=2.7.6 | |
| Ubuntu Linux | =14.04 | |
| Ubuntu Linux | =16.04 | |
| Ubuntu Linux | =17.10 | |
| Ubuntu | =14.04 | |
| Ubuntu | =16.04 | |
| Ubuntu | =17.10 |
Remedy
https://git.savannah.gnu.org/cgit/patch.git/commit/?id=f290f48a621867084884bfff87f8093c15195e6a
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Reference Links
- 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/
- https://launchpad.net/bugs/cve/CVE-2018-6951
- https://security-tracker.debian.org/tracker/CVE-2018-6951
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6951
- https://nvd.nist.gov/vuln/detail/CVE-2018-6951
- https://ubuntu.com/security/CVE-2018-6951
Frequently Asked Questions
What is the severity of CVE-2018-6951?
CVE-2018-6951 has a severity rating that indicates it can cause a denial of service due to a segmentation fault.
How do I fix CVE-2018-6951?
To fix CVE-2018-6951, upgrade GNU patch to version 2.7.7 or later.
What is the impact of CVE-2018-6951?
The impact of CVE-2018-6951 is a denial of service caused by a NULL pointer dereference.
Which versions of GNU patch are affected by CVE-2018-6951?
GNU patch versions up to and including 2.7.6 are affected by CVE-2018-6951.
Is CVE-2018-6951 present in Ubuntu Linux?
Yes, CVE-2018-6951 is present in specific versions of Ubuntu Linux that use the vulnerable GNU patch.
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