CVE-2011-2702 EXPLOIT
6.8
MEDIUM · CVSS 2.0 · EPSS 8.5% (pctl 95)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 6.8 (MEDIUM, v2.0) |
|---|---|
| Vector | AV:N/AC:M/Au:N/C:P/I:P/A:P |
| EPSS | 8.46% — more likely to be exploited than 95% of all CVEs |
| Weakness | CWE-94 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2014-10-27 |
| Last modified | 2026-06-16 |
Affected (2)
| Vendor | Product |
|---|---|
| gnu | eglibc |
| gnu | glibc |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | eGlibc - Signedness Code Execution | 2012-08-01 |
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&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/
- https://bugzilla.novell.com/show_bug.cgi?id=706915
- https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=a0ac24d98ace90d1ccba6a2f3e7d55600f2fdb6e
- 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&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/
- https://bugzilla.novell.com/show_bug.cgi?id=706915
- https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=a0ac24d98ace90d1ccba6a2f3e7d55600f2fdb6e
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