7.5
CVSSv2

CVE-2006-0459

Published: 29/03/2006 Updated: 06/10/2023
CVSS v2 Base Score: 7.5 | Impact Score: 6.4 | Exploitability Score: 10
VMScore: 668
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Vulnerability Summary

flex.skl in Will Estes and John Millaway Fast Lexical Analyzer Generator (flex) prior to 2.5.33 does not allocate enough memory for grammars containing (1) REJECT statements or (2) trailing context rules, which causes flex to generate code that contains a buffer overflow that might allow context-dependent malicious users to execute arbitrary code.

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westes flex

Vendor Advisories

Chris Moore discovered a buffer overflow in a particular class of lexicographical scanners generated by flex This could be exploited to execute arbitrary code by processing specially crafted user-defined input to an application that uses a flex scanner for parsing ...