Home/CVE/Integer signedness error in Glibc before 2.13 and eglibc before 2.13, when using Supplemental Streaming SIMD Extensions
CVE

CVE-2011-2702

Integer signedness error in Glibc before 2.13 and eglibc before 2.13, when using Supplemental Streaming SIMD Extensions

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.

MEDIUM · CVSS 6.8 EPSS 0.03354
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-94Improper Control of Generation of Code ('Code Injection')
▤

Affected Products & Versions

3
gnu glibc<= 2.12.2
gnu glibcall versions
gnu eglibc<= 2.12
⚠

Public Exploits & PoCs

2
doseGlibc - Signedness Code Executionverified
pocxorl.wordpress.com · cve-2011-2702-eglibc-and-glibc-signedness-issuexorl.wordpress.com
▣

Scoring & Timeline

6.8
MEDIUM · CVSS v2 (legacy) · secalert@redhat.com
View on NVD
This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.
v2 Vector
AV:N/AC:M/Au:N/C:P/I:P/A:P
Published to NVD27 Oct 2014 · 08:55 PM
⚑

Vendor Advisories

1
usnUSN-1396-1
🔗

References & Sources

7
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
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
https://bugzilla.novell.com/show_bug.cgi?id=706915
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