DEBIAN-CVE-2006-0459

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    DEBIAN-CVE-2006-0459

    Published: 29 Mar 2006Last Modified: 7 Sept 2026
    Upstream:
    CVE-2006-0459

    Summary:

    Details: 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.

    References: https://security-tracker.debian.org/tracker/CVE-2006-0459

    Affected packages

    Package

    Name: flex

    Purl: pkg:deb/debian/flex?arch=source&distro=bookworm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.5.33-1

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High