UBUNTU-CVE-2017-6420

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    UBUNTU-CVE-2017-6420

    Published: 6 Aug 2017Last Modified: 22 Apr 2026
    Upstream:
    CVE-2017-6420

    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://ubuntu.com/security/CVE-2017-6420, https://github.com/varsleak/varsleak-vul/blob/master/clamav-vul/use-after-free/clamav-use-after-free-pe.md, https://ubuntu.com/security/notices/USN-3393-1, https://ubuntu.com/security/notices/USN-3393-2, https://www.cve.org/CVERecord?id=CVE-2017-6420

    Affected packages

    Package

    Name: clamav

    Purl: pkg:deb/ubuntu/[email protected]+addedllvm-0ubuntu0.14.04.2?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0.99.2+addedllvm-0ubuntu0.14.04.2

    Affected versions

    0.97.8+dfsg-1ubuntu4
    0.97.8+dfsg-1ubuntu5

    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