CVE-2013-4458: Buffer Overflow
First published: Thu Dec 12 2013(Updated: )
Stack-based buffer overflow in the getaddrinfo function in sysdeps/posix/getaddrinfo.c in GNU C Library (aka glibc or libc6) 2.18 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 AF_INET6 address results. NOTE: this vulnerability exists because of an incomplete fix for CVE-2013-1914.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GNU C Library | <=2.18 | |
| GNU C Library | =2.0 | |
| GNU C Library | =2.0.1 | |
| GNU C Library | =2.0.2 | |
| GNU C Library | =2.0.3 | |
| GNU C Library | =2.0.4 | |
| GNU C Library | =2.0.5 | |
| GNU C Library | =2.0.6 | |
| GNU C Library | =2.1 | |
| GNU C Library | =2.1.1 | |
| GNU C Library | =2.1.1.6 | |
| GNU C Library | =2.1.2 | |
| GNU C Library | =2.1.3 | |
| GNU C Library | =2.1.9 | |
| GNU C Library | =2.10.1 | |
| GNU C Library | =2.11 | |
| GNU C Library | =2.11.1 | |
| GNU C Library | =2.11.2 | |
| GNU C Library | =2.11.3 | |
| GNU C Library | =2.12.1 | |
| GNU C Library | =2.12.2 | |
| GNU C Library | =2.13 | |
| GNU C Library | =2.14 | |
| GNU C Library | =2.14.1 | |
| GNU C Library | =2.15 | |
| GNU C Library | =2.16 | |
| GNU C Library | =2.17 | |
| SUSE Linux Enterprise Debuginfo | =11-sp2 | |
| SUSE Linux Enterprise Server | =11-sp2 |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00036.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:283
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:284
- https://security.gentoo.org/glsa/201503-04
- https://sourceware.org/bugzilla/show_bug.cgi?id=16072
- https://sourceware.org/ml/libc-alpha/2013-10/msg00733.html
Frequently Asked Questions
What is the severity of CVE-2013-4458?
CVE-2013-4458 has a high severity level as it can lead to denial of service through a stack-based buffer overflow.
How do I fix CVE-2013-4458?
To fix CVE-2013-4458, you should upgrade to a patched version of the GNU C Library that is newer than version 2.18.
Which versions of glibc are affected by CVE-2013-4458?
CVE-2013-4458 affects GNU C Library (glibc) versions 2.18 and earlier.
Is CVE-2013-4458 exploitable remotely?
Yes, CVE-2013-4458 can be exploited remotely by attackers using a specially crafted hostname or IP address.
What impact does CVE-2013-4458 have on systems?
The impact of CVE-2013-4458 is that it may cause systems to crash, resulting in denial of service.
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- version/gnu c library/2.11.2
- version/gnu c library/2.11.3
- version/gnu c library/2.12.1
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