Buffer overflow in GNU C Library (glibc) - CVE-2015-5277
Published: February 12, 2023 / Updated: June 3, 2025
Vulnerability identifier: #VU110106
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2015-5277
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to execute arbitrary code.
The get_contents function in nss_files/files-XXX.c in the Name Service Switch (NSS) in GNU C Library (aka glibc or libc6) before 2.20 might allow local users to cause a denial of service (heap corruption) or gain privileges via a long line in the NSS files database.
Affected software
GNU C Library (glibc)
How to mitigate CVE-2015-5277
Install update from vendor's website.
GNU C Library (glibc) - update to 2.20
External References
- https://bugzilla.redhat.com/show_bug.cgi?id=1262914
- https://sourceware.org/bugzilla/show_bug.cgi?id=17079
- http://www.securitytracker.com/id/1034196
- http://rhn.redhat.com/errata/RHSA-2015-2172.html
- https://sourceware.org/ml/libc-alpha/2014-09/msg00088.html
- http://www.ubuntu.com/usn/USN-2985-2
- http://www.ubuntu.com/usn/USN-2985-1
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- http://www.securityfocus.com/bid/78092
- https://security.gentoo.org/glsa/201702-11
- http://seclists.org/fulldisclosure/2019/Sep/7
- https://seclists.org/bugtraq/2019/Sep/7
- http://packetstormsecurity.com/files/154361/Cisco-Device-Hardcoded-Credentials-GNU-glibc-BusyBox.html