UBUNTU-CVE-2022-42720

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    UBUNTU-CVE-2022-42720

    Published: 14 Oct 2022Last Modified: 9 Sept 2026
    Upstream:
    CVE-2022-42720
    Aliases:
    USN-5691-1
    USN-5692-1
    USN-5693-1

    Summary:

    Details: Various refcounting bugs in the multi-BSS handling in the mac80211 stack in the Linux kernel 5.1 through 5.19.x before 5.19.16 could be used by local attackers (able to inject WLAN frames) to trigger use-after-free conditions to potentially execute code.

    References: https://ubuntu.com/security/CVE-2022-42720, https://access.redhat.com/security/cve/CVE-2022-42720, http://www.openwall.com/lists/oss-security/2022/10/13/5, https://bugzilla.suse.com/show_bug.cgi?id=1204059, https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless.git/commit/?id=0b7808818cb9df6680f98996b8e9a439fa7bcc2f, https://ubuntu.com/security/notices/USN-5691-1, https://ubuntu.com/security/notices/USN-5692-1, https://ubuntu.com/security/notices/USN-5693-1, https://ubuntu.com/security/notices/USN-5700-1, https://ubuntu.com/security/notices/USN-5708-1, https://ubuntu.com/security/notices/USN-5752-1, https://www.cve.org/CVERecord?id=CVE-2022-42720

    Affected packages

    Package

    Name: linux-hwe-edge

    Purl: pkg:deb/ubuntu/linux-hwe-edge?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    4.8.0-28.30~16.04.1
    4.8.0-30.32~16.04.1
    4.8.0-32.34~16.04.1
    4.8.0-34.36~16.04.1

    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-2022-42720 | CVE-DB