CVE-2017-6420

    Dashboard / Vulnerabilities / CVE-2017-6420

    CVE-2017-6420

    Published: 7 Aug 2017Last Modified: 8 Jul 2026

    Summary:

    Details: The wwunpack function in libclamav/wwunpack.c in ClamAV 0.99.2 allows remote attackers to cause a denial of service (use-after-free) via a crafted PE file with WWPack compression.

    References: https://github.com/varsleak/varsleak-vul/blob/master/clamav-vul/use-after-free/clamav-use-after-free-pe.md, https://security.gentoo.org/glsa/201804-16, https://bugzilla.clamav.net/show_bug.cgi?id=11798, https://github.com/vrtadmin/clamav-devel/commit/dfc00cd3301a42b571454b51a6102eecf58407bc

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 5ceae552829ee65c9ecff8ff303b1f2ddfd11576
    Fixed -None

    Affected versions

    0.99.2

    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-2017-6420 | CVE-DB