Vulnerability Description
Integer signedness error in Glibc before 2.13 and eglibc before 2.13, when using Supplemental Streaming SIMD Extensions 3 (SSSE3) optimization, allows context-dependent attackers to execute arbitrary code via a negative length parameter to (1) memcpy-ssse3-rep.S, (2) memcpy-ssse3.S, or (3) memset-sse2.S in sysdeps/i386/i686/multiarch/, which triggers an out-of-bounds read, as demonstrated using the memcpy function.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gnu | Glibc | <= 2.12.2 |
| Gnu | Eglibc | <= 2.12 |
Related Weaknesses (CWE)
References
- http://seclists.org/oss-sec/2011/q3/123
- http://seclists.org/oss-sec/2011/q3/153
- http://www.eglibc.org/cgi-bin/viewvc.cgi/trunk/libc/ChangeLog?view=markup&pathre
- http://www.nodefense.org/eglibc.txt
- http://www.osvdb.org/80718
- http://xorl.wordpress.com/2011/08/06/cve-2011-2702-eglibc-and-glibc-signedness-iExploit
- https://bugzilla.novell.com/show_bug.cgi?id=706915
- https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=a0ac24d98ace90d1ccba6a2f3
- http://seclists.org/oss-sec/2011/q3/123
- http://seclists.org/oss-sec/2011/q3/153
- http://www.eglibc.org/cgi-bin/viewvc.cgi/trunk/libc/ChangeLog?view=markup&pathre
- http://www.nodefense.org/eglibc.txt
- http://www.osvdb.org/80718
- http://xorl.wordpress.com/2011/08/06/cve-2011-2702-eglibc-and-glibc-signedness-iExploit
- https://bugzilla.novell.com/show_bug.cgi?id=706915
FAQ
What is CVE-2011-2702?
CVE-2011-2702 is a vulnerability with a CVSS score of 6.8 (MEDIUM). Integer signedness error in Glibc before 2.13 and eglibc before 2.13, when using Supplemental Streaming SIMD Extensions 3 (SSSE3) optimization, allows context-dependent attackers to execute arbitrary ...
How severe is CVE-2011-2702?
CVE-2011-2702 has been rated MEDIUM with a CVSS base score of 6.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-2702?
Check the references section above for vendor advisories and patch information. Affected products include: Gnu Glibc, Gnu Eglibc.