UBUNTU-CVE-2023-52593

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    UBUNTU-CVE-2023-52593

    Published: 6 Mar 2024Last Modified: 8 Oct 2026
    Upstream:
    CVE-2023-52593
    Aliases:
    USN-6688-1
    USN-6818-1
    USN-6818-2

    Summary:

    Details: In the Linux kernel, the following vulnerability has been resolved: wifi: wfx: fix possible NULL pointer dereference in wfx_set_mfp_ap() Since 'ieee80211_beacon_get()' can return NULL, 'wfx_set_mfp_ap()' should check the return value before examining skb data. So convert the latter to return an appropriate error code and propagate it to return from 'wfx_start_ap()' as well. Compile tested only.

    References: https://ubuntu.com/security/CVE-2023-52593, https://git.kernel.org/linus/fe0a7776d4d19e613bb8dd80fe2d78ae49e8b49d, https://git.kernel.org/stable/c/574dcd3126aa2eed75437137843f254b1190dd03, https://git.kernel.org/stable/c/9ab224744a47363f74ea29c6894c405e3bcf5132, https://git.kernel.org/stable/c/3739121443f5114c6bcf6d841a5124deb006b878, https://git.kernel.org/stable/c/fe0a7776d4d19e613bb8dd80fe2d78ae49e8b49d, https://ubuntu.com/security/notices/USN-6688-1, https://www.cve.org/CVERecord?id=CVE-2023-52593, https://ubuntu.com/security/notices/USN-6818-1, https://ubuntu.com/security/notices/USN-6819-1, https://ubuntu.com/security/notices/USN-6818-2, https://ubuntu.com/security/notices/USN-6819-2, https://ubuntu.com/security/notices/USN-6819-3, https://ubuntu.com/security/notices/USN-6818-3, https://ubuntu.com/security/notices/USN-6818-4, https://ubuntu.com/security/notices/USN-6819-4, https://ubuntu.com/security/notices/USN-7829-1, https://ubuntu.com/security/notices/USN-7829-2, https://ubuntu.com/security/notices/USN-7829-3, https://ubuntu.com/security/notices/USN-7829-4, https://ubuntu.com/security/notices/USN-7829-5, https://ubuntu.com/security/notices/USN-7829-6, https://ubuntu.com/security/notices/USN-7933-1

    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-2023-52593 | CVE-DB