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
Published Oct 27, 2014
6.8
MEDIUMCVSS 2.0
EPSS 8.46%
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.
Affected products
Remediation
Red Hat statement
Not vulnerable. This issue did not affect the versions of glibc as shipped with Red Hat Enterprise Linux 3, 4, 5, or 6.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 8.46% (0.08458) | 94.85th | v5 (v2026.06.15) |
| Jun 15, 2026 | 8.46% (0.08458) | 94.29th | v5 (v2026.06.15) |
| Apr 6, 2026 | 3.35% (0.03354) | 87.30th | v4 (v2025.03.14) |
| Jul 12, 2025 | 4.49% (0.04486) | 88.62th | v4 (v2025.03.14) |
| Jun 10, 2025 | 5.97% (0.05969) | 90.16th | v4 (v2025.03.14) |
| Mar 30, 2025 | 4.76% (0.04758) | 88.42th | v4 (v2025.03.14) |
| Mar 29, 2025 | 6.85% (0.06848) | 85.23th | v4 (v2025.03.14) |
| Mar 17, 2025 | 4.76% (0.04758) | 88.70th | v4 (v2025.03.14) |
| Dec 12, 2024 | 2.36% (0.02358) | 90.19th | v3 (v2023.03.01) |
| Mar 2, 2024 | 2.30% (0.02296) | 89.37th | v3 (v2023.03.01) |
| Jul 4, 2023 | 1.93% (0.01930) | 87.00th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.88% (0.01884) | 86.57th | v3 (v2023.03.01) |
| Mar 6, 2023 | 17.45% (0.17451) | 96.24th | v2 (v2022.01.01) |
| Aug 10, 2022 | 17.45% (0.17451) | 96.01th | v2 (v2022.01.01) |
| Apr 1, 2022 | 19.39% (0.19386) | 96.05th | v2 (v2022.01.01) |
| Feb 4, 2022 | 19.39% (0.19386) | 93.76th | v2 (v2022.01.01) |
References (11)
- http://seclists.org/oss-sec/2011/q3/123 mailing-listx_refsource_MLIST
- http://seclists.org/oss-sec/2011/q3/153 mailing-listx_refsource_MLIST
- http://www.eglibc.org/cgi-bin/viewvc.cgi/trunk/libc/ChangeLog?view=markup&pathrev=10032 x_refsource_CONFIRM
- http://www.nodefense.org/eglibc.txt x_refsource_MISC
- http://www.osvdb.org/80718 vdb-entryx_refsource_OSVDB
- http://xorl.wordpress.com/2011/08/06/cve-2011-2702-eglibc-and-glibc-signedness-issue/ x_refsource_MISCExploit
- https://access.redhat.com/security/cve/CVE-2011-2702 Vendor Advisory
- https://bugzilla.novell.com/show_bug.cgi?id=706915 x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2011-2702
- https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=a0ac24d98ace90d1ccba6a2f3e7d55600f2fdb6e x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2011-2702
| Link | Providers | Tags |
|---|---|---|
| http://seclists.org/oss-sec/2011/q3/123 | mailing-listx_refsource_MLIST | |
| http://seclists.org/oss-sec/2011/q3/153 | mailing-listx_refsource_MLIST | |
| http://www.eglibc.org/cgi-bin/viewvc.cgi/trunk/libc/ChangeLog?view=markup&pathrev=10032 | x_refsource_CONFIRM | |
| http://www.nodefense.org/eglibc.txt | x_refsource_MISC | |
| http://www.osvdb.org/80718 | vdb-entryx_refsource_OSVDB | |
| http://xorl.wordpress.com/2011/08/06/cve-2011-2702-eglibc-and-glibc-signedness-issue/ | x_refsource_MISCExploit | |
| https://access.redhat.com/security/cve/CVE-2011-2702 | Vendor Advisory | |
| https://bugzilla.novell.com/show_bug.cgi?id=706915 | x_refsource_MISC | |
| https://nvd.nist.gov/vuln/detail/CVE-2011-2702 | ||
| https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=a0ac24d98ace90d1ccba6a2f3e7d55600f2fdb6e | x_refsource_CONFIRM | |
| https://www.cve.org/CVERecord?id=CVE-2011-2702 |
Change history (0)
No recorded changes yet.