CVE-2015-20109
First published: Sun Jun 25 2023(Updated: )
end_pattern (called from internal_fnmatch) in the GNU C Library (aka glibc or libc6) before 2.22 might allow context-dependent attackers to cause a denial of service (application crash), as demonstrated by use of the fnmatch library function with the **(!() pattern. NOTE: this is not the same as CVE-2015-8984; also, some Linux distributions have fixed CVE-2015-8984 but have not fixed this additional fnmatch issue.
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GNU glibc | <2.22 | |
| debian/glibc | 2.31-13+deb11u11 2.31-13+deb11u10 2.36-9+deb12u9 2.36-9+deb12u7 2.40-4 |
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Reference Links
- https://security.netapp.com/advisory/ntap-20230731-0009/
- https://sourceware.org/bugzilla/show_bug.cgi?id=18036
- https://launchpad.net/bugs/cve/CVE-2015-20109
- https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=c2c6d39fab901c97c18fa3a3a3658d9dc3f7df61
- https://security-tracker.debian.org/tracker/CVE-2015-20109
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-20109
- https://nvd.nist.gov/vuln/detail/CVE-2015-20109
- https://ubuntu.com/security/CVE-2015-20109
Frequently Asked Questions
What is the vulnerability ID of this vulnerability?
The vulnerability ID of this vulnerability is CVE-2015-20109.
What is the name of the affected software?
The affected software is the GNU C Library (aka glibc or libc6).
What is the severity rating of CVE-2015-20109?
The severity rating of CVE-2015-20109 is medium (5.5).
How can context-dependent attackers exploit CVE-2015-20109?
Context-dependent attackers can exploit CVE-2015-20109 by causing a denial of service (application crash) through the use of the fnmatch library function with the **(!() pattern.
How can I fix CVE-2015-20109?
To fix CVE-2015-20109, you should update the GNU C Library to version 2.22 or later.
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