ALSA-2022:5821

    Dashboard / Vulnerabilities / ALSA-2022:5821

    ALSA-2022:5821

    Published: 2 Aug 2022Last Modified: 4 Feb 2026

    Summary: Moderate: virt:rhel and virt-devel:rhel security, bug fix, and enhancement update

    Details: Kernel-based Virtual Machine (KVM) offers a full virtualization solution for Linux on numerous hardware platforms. The virt:rhel module contains packages which provide user-space components used to run virtual machines using KVM. The packages also provide APIs for managing and interacting with the virtualized systems. Security Fix(es): * QEMU: QXL: integer overflow in cursor_alloc() can lead to heap buffer overflow (CVE-2021-4206) * QEMU: QXL: double fetch in qxl_cursor() can lead to heap buffer overflow (CVE-2021-4207) * QEMU: virtio-net: map leaking on error during receive (CVE-2022-26353) * QEMU: vhost-vsock: missing virtqueue detach on error can lead to memory leak (CVE-2022-26354) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Bug Fix(es): * AlmaLinux 9.0 guest with vsock device migration failed from AlmaLinux 9.0 > AlmaLinux 8.6 (BZ#2071103) * Fail to rebuild the reference count tables of qcow2 image on host block devices (e.g. LVs) (BZ#2072242) * Remove upstream-only devices from the qemu-kvm binary (BZ#2077928) * When doing a cpu-baseline between skylake and cascadelake, cascadelake is selected as baseline. (BZ#2084030) * Virt-v2v can't convert rhel8.6 guest from VMware on rhel8.6 (BZ#2093415) Enhancement(s): * Allow memory prealloc from multiple threads (BZ#2075569)

    References: https://access.redhat.com/errata/RHSA-2022:5821, https://access.redhat.com/security/cve/CVE-2021-4206, https://access.redhat.com/security/cve/CVE-2021-4207, https://access.redhat.com/security/cve/CVE-2022-26353, https://access.redhat.com/security/cve/CVE-2022-26354, https://bugzilla.redhat.com/2036966, https://bugzilla.redhat.com/2036998, https://bugzilla.redhat.com/2063197, https://bugzilla.redhat.com/2063257, https://errata.almalinux.org/8/ALSA-2022-5821.html

    Affected packages

    Package

    Name: SLOF

    Purl: pkg:rpm/almalinux/SLOF

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -20210217-1.module_el8.6.0+2880+7d9e3703

    Affected versions

    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
    ALSA-2022:5821 | CVE-DB