CVE-2017-5923

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    CVE-2017-5923

    Published: 3 Apr 2017Last Modified: 8 Jul 2026

    Summary:

    Details: libyara/grammar.y in YARA 3.5.0 allows remote attackers to cause a denial of service (heap-based out-of-bounds read and application crash) via a crafted rule that is mishandled in the yara_yyparse function.

    References: http://www.securityfocus.com/bid/98080, https://github.com/VirusTotal/yara/commit/ab906da53ff2a68c6fd6d1fa73f2b7c7bf0bc636, https://github.com/VirusTotal/yara/issues/597

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- c8571453e39913267e7042096d03bee040409b9a
    Fixed -None

    Affected versions

    3.5.0

    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
    CVE-2017-5923 | CVE-DB