CVE-2011-2702: gnu eglibc Code Injection

Vulnerability summary

CVE-2011-2702 is a medium (CVSS 6.8) Code Injection vulnerability in gnu eglibc. EPSS estimates a 8.46% chance of exploitation in the next 30 days, higher than 94.9% of scored vulnerabilities. 2 public exploits are recorded.

Timeline

1. 27-10-2014
   PublishedVulnerability first disclosed.
2. 06-08-2024
   Last modifiedVulnerability information updated.

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.

• CWE-94Improper Control of Generation of Code ('Code Injection')The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.