Description
Stack-based buffer overflow in the getaddrinfo function in sysdeps/posix/getaddrinfo.c in GNU C Library (aka glibc or libc6) 2.17 and earlier allows remote attackers to cause a denial of service (crash) via a (1) hostname or (2) IP address that triggers a large number of domain conversion results.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | glibc | 2.17-2 | — |
| Debian 13 | glibc | 2.17-2 | — |
| Debian 12 | glibc | 2.17-2 | — |
| Debian 6.0 | eglibc | 2.11.3-4+deb6u5 | DLA-165-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | nscd +7 | 2.12-1.132.el6 | RHSA-2013:1605 |
| RHEL 5 | nscd +6 | 2.5-107.el5_9.4 | RHSA-2013:0769 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | glibc | 2.24-2.3 | openSUSE-SU-2024:10154-1 |
Advisories 4
- RHSA-2013:1605 Red Hat Security Advisory: glibc security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DLA-165-1 eglibc - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10154-1 glibc-2.24-2.3 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- RHSA-2013:0769 Red Hat Security Advisory: glibc security and bug fix update Red Hat Security Advisories (RHSA) · Nov 22, 2025
References
- http://www.vmware.com/security/advisories/VMSA-2014-0008.html
- RHSA-2013:1605 vendor-advisory
- 55113 third-party-advisory
- [oss-security] 20130403 CVE Request: glibc getaddrinfo() stack overflow mailing-list
- USN-1991-1 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=947882
- MDVSA-2013:284 vendor-advisory
- 58839 vdb-entry
- http://sourceware.org/bugzilla/show_bug.cgi?id=15330
- http://sourceware.org/git/?p=glibc.git%3Ba=commitdiff%3Bh=1cef1b19089528db11f221e938f60b9b048945d7
- [oss-security] 20130403 Re: CVE Request: glibc getaddrinfo() stack overflow mailing-list
- [oss-security] 20130405 Re: CVE Request: glibc getaddrinfo() stack overflow mailing-list
- GLSA-201503-04 vendor-advisory
- MDVSA-2013:283 vendor-advisory
- 52817 third-party-advisory
- RHSA-2013:0769 vendor-advisory
- MDVSA-2013:163 vendor-advisory
- https://bugzilla.novell.com/show_bug.cgi?id=813121
- 20210901 SEC Consult SA-20210901-0 :: Multiple vulnerabilities in MOXA devices mailing-list
- http://packetstormsecurity.com/files/164014/Moxa-Command-Injection-Cross-Site-Scripting-Vulnerable-Software.html