CVE-2013-4237: Buffer Overflow
First published: Sun Aug 11 2013(Updated: )
An out-of buffer bounds write flaw was found in the way the readdir_r function in glibc, the GNU C Library, handled a directory entry whose file name name contained more byte than the NAME_MAX characters constant indicated. An attacker could provide a specially-crafted (local) NTFS or (remote) CIFS file system that, when processed in an application using the readdir_r() function, would cause that application to crash or, potentially, execute arbitrary code with the privileges of the user running the application. Upstream bug report: [1] <a href="http://sourceware.org/bugzilla/show_bug.cgi?id=14699">http://sourceware.org/bugzilla/show_bug.cgi?id=14699</a> Latest patch proposal: [2] <a href="http://sourceware.org/ml/libc-alpha/2013-05/msg00445.html">http://sourceware.org/ml/libc-alpha/2013-05/msg00445.html</a>
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 |
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Reference Links
- http://sourceware.org/bugzilla/show_bug.cgi?id=14699
- http://sourceware.org/ml/libc-alpha/2013-05/msg00445.html
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=995841
- http://www.openwall.com/lists/oss-security/2013/08/11/2
- http://www.openwall.com/lists/oss-security/2013/08/12/8
- http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=91ce40854d0b7f865cf5024ef95a8026b76096f3
- https://access.redhat.com/support/policy/updates/errata/
- https://rhn.redhat.com/errata/RHSA-2014-1391.html
- https://bugzilla.redhat.com/show_bug.cgi?id=995839
- http://secunia.com/advisories/55113
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:283
- http://www.securityfocus.com/bid/61729
- http://www.ubuntu.com/usn/USN-1991-1
- https://security.gentoo.org/glsa/201503-04
- https://sourceware.org/bugzilla/show_bug.cgi?id=14699
- https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Ba=commitdiff%3Bh=91ce40854d0b7f865cf5024ef95a8026b76096f3
Frequently Asked Questions
What is the severity of CVE-2013-4237?
CVE-2013-4237 is considered a high severity vulnerability due to its potential for remote code execution.
How do I fix CVE-2013-4237?
To fix CVE-2013-4237, update the GNU C Library to version 2.19 or later.
What versions of GNU C Library are affected by CVE-2013-4237?
CVE-2013-4237 affects GNU C Library versions 2.0 through 2.18.
Can CVE-2013-4237 be exploited remotely?
Yes, CVE-2013-4237 can be exploited remotely if an attacker can manipulate directory entries.
What is the impact of CVE-2013-4237 on system security?
CVE-2013-4237 can lead to unexpected behavior, including potential crashes or arbitrary code execution, undermining system security.
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