Out-of-Bounds Affecting flex package, versions <2.5.33-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
4.02% (93rd percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-FLEX-285175
  • published29 Mar 2006
  • disclosed29 Mar 2006

Introduced: 29 Mar 2006

CVE-2006-0459  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

Upgrade Debian:unstable flex to version 2.5.33-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream flex package and not the flex package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

flex.skl in Will Estes and John Millaway Fast Lexical Analyzer Generator (flex) before 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 attackers to execute arbitrary code.

CVSS Scores

version 3.1