UBUNTU-CVE-2026-110602

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    UBUNTU-CVE-2026-110602

    Published: 14 Oct 2026Last Modified: 3 Nov 2026
    Upstream:
    CVE-2026-110602
    Aliases:
    USN-8973-1

    Summary:

    Details: libmspack through 0.11alpha contains an uninitialized pointer free vulnerability in kwajd_open() in mspack/kwajd.c that frees unzeroed filename and extra pointers on header read errors. Attackers can supply a truncated, empty, or wrong-signature KWAJ file to crash the process or obtain an arbitrary-free memory corruption primitive.

    References: https://ubuntu.com/security/CVE-2026-110602, https://www.cve.org/CVERecord?id=CVE-2026-110602, https://hackmd.io/@haind-pwn/libmspack-kwaj-uninitialized-free, https://www.vulncheck.com/advisories/libmspack-through-0-11alpha-uninitialized-pointer-free-via-kwajd-open-error-path, https://ubuntu.com/security/notices/USN-8973-1

    Affected packages

    Package

    Name: clamav

    Purl: pkg:deb/ubuntu/clamav?arch=source&distro=esm-infra-legacy%2Ftrusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    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
    UBUNTU-CVE-2026-110602 | CVE-DB