CVE-2012-3480: Buffer Overflow
First published: Sat Aug 25 2012(Updated: )
Multiple integer overflows in the (1) strtod, (2) strtof, (3) strtold, (4) strtod_l, and other unspecified "related functions" in stdlib in GNU C Library (aka glibc or libc6) 2.16 allow local users to cause a denial of service (application crash) and possibly execute arbitrary code via a long string, which triggers a stack-based buffer overflow.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GNU C Library | =2.16 |
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Reference Links
- http://lists.fedoraproject.org/pipermail/package-announce/2012-August/085190.html
- http://osvdb.org/84710
- http://rhn.redhat.com/errata/RHSA-2012-1207.html
- http://rhn.redhat.com/errata/RHSA-2012-1208.html
- http://rhn.redhat.com/errata/RHSA-2012-1262.html
- http://rhn.redhat.com/errata/RHSA-2012-1325.html
- http://secunia.com/advisories/50201
- http://secunia.com/advisories/50422
- http://sourceware.org/bugzilla/show_bug.cgi?id=14459
- http://sourceware.org/ml/libc-alpha/2012-08/msg00202.html
- http://www.openwall.com/lists/oss-security/2012/08/13/4
- http://www.openwall.com/lists/oss-security/2012/08/13/6
- http://www.securityfocus.com/bid/54982
- http://www.securitytracker.com/id?1027374
- http://www.ubuntu.com/usn/USN-1589-1
- https://security.gentoo.org/glsa/201503-04
Frequently Asked Questions
What is the severity of CVE-2012-3480?
CVE-2012-3480 is classified as a medium severity vulnerability due to its potential for denial of service and arbitrary code execution.
How do I fix CVE-2012-3480?
To fix CVE-2012-3480, you should upgrade to a newer version of the GNU C Library that is not vulnerable, such as glibc 2.17 or higher.
What systems are affected by CVE-2012-3480?
CVE-2012-3480 affects local users on systems running GNU C Library version 2.16.
What types of attacks can exploit CVE-2012-3480?
CVE-2012-3480 can be exploited through crafted input that triggers integer overflows in certain string conversion functions.
Is CVE-2012-3480 a remote or local vulnerability?
CVE-2012-3480 is considered a local vulnerability as it requires local user access to exploit.
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