Integer Signedness Error in Glibc and Eglibc Allows Arbitrary Code Execution

CVE-2011-2702 · MEDIUM Severity

AV:N/AC:M/AU:N/C:P/I:P/A:P

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.

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