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    Mageia 2020-0473: libvirt security update

    Date 29 Dec 2020
    124
    Posted By LinuxSecurity Advisories
    A double free memory issue was found to occur in the libvirt API responsible for requesting information about network interfaces of a running QEMU domain. This flaw affects the polkit access control driver. Specifically, clients connecting to the read-write socket with limited ACL permissions could use this flaw to crash the libvirt daemon, resulting in a denial of service, or
    MGASA-2020-0473 - Updated libvirt packages fix security vulnerability
    
    Publication date: 29 Dec 2020
    URL: https://advisories.mageia.org/MGASA-2020-0473.html
    Type: security
    Affected Mageia releases: 7
    CVE: CVE-2020-25637
    
    A double free memory issue was found to occur in the libvirt API responsible
    for requesting information about network interfaces of a running QEMU domain.
    This flaw affects the polkit access control driver. Specifically, clients
    connecting to the read-write socket with limited ACL permissions could use this
    flaw to crash the libvirt daemon, resulting in a denial of service, or
    potentially escalate their privileges on the system. The highest threat from
    this vulnerability is to data confidentiality and integrity as well as system
    availability (CVE-2020-25637).
    
    References:
    - https://bugs.mageia.org/show_bug.cgi?id=27388
    - https://access.redhat.com/errata/RHSA-2020:5040
    - https://lists.opensuse.org/opensuse-security-announce/2020-10/msg00073.html
    - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25637
    
    SRPMS:
    - 7/core/libvirt-5.5.0-1.3.mga7
    

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