CVE-2011-2702

23Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendepss 8.5%

from disclosure to weapon0 days

Published on NVDOct 27

1st PoCAug 1

exploitation probability

8.5%top 6% of all CVEs

observed exploitation

nono source reports it

1 public exploit(s)

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.

Affected products

n/a · n/a

public PoCs found — 1✓ VexDay Proof

exploitdb✓ VexDay Proofwww.exploit-db.com/exploits/20167

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

References

https://bugzilla.novell.com/show_bug.cgi?id=706915 http://seclists.org/oss-sec/2011/q3/123 http://seclists.org/oss-sec/2011/q3/153 https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=a0ac24d98ace90d1ccba6a2f3e7d55600f2fdb6e http://www.eglibc.org/cgi-bin/viewvc.cgi/trunk/libc/ChangeLog?view=markup&pathrev=10032 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-issue/