CVE-2011-2702
CVE-2011-2702 is a medium-severity vulnerability in Gnu Glibc with a CVSS 2.0 base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-94.
Key facts
- Severity: Medium (CVSS 2.0 base score 6.8)
- EPSS exploit prediction: 8% (94th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-94
- Affected product: Gnu Glibc
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2011-2702?
- 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.
- How severe is CVE-2011-2702?
- CVE-2011-2702 has a CVSS 2.0 base score of 6.8, rated medium severity.
- Is CVE-2011-2702 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 8% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2011-2702?
- CVE-2011-2702 primarily affects Gnu Glibc. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2011-2702?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2011-2702 published?
- CVE-2011-2702 was published on 2014-10-27 and last updated on 2026-06-16.
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
Affected products (4)
- cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.12:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:glibc:2.12.1:*:*:*:*:*:*:*
- cpe:2.3:a:gnu:eglibc:*:*:*:*:*:*:*:*
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