UBUNTU-CVE-2023-42756

    Dashboard / Vulnerabilities / UBUNTU-CVE-2023-42756

    UBUNTU-CVE-2023-42756

    Published: 28 Sept 2023Last Modified: 22 Apr 2026
    Upstream:
    CVE-2023-42756
    Aliases:
    USN-6441-1
    USN-6441-2
    USN-6441-3

    Summary:

    Details: A flaw was found in the Netfilter subsystem of the Linux kernel. A race condition between IPSET_CMD_ADD and IPSET_CMD_SWAP can lead to a kernel panic due to the invocation of `__ip_set_put` on a wrong `set`. This issue may allow a local user to crash the system.

    References: https://ubuntu.com/security/CVE-2023-42756, https://www.openwall.com/lists/oss-security/2023/09/27/2, https://git.kernel.org/linus/7433b6d2afd512d04398c73aa984d1e285be125b, https://lore.kernel.org/netfilter-devel/ZPZqetxOmH+w%2Fmyc@westworld/#r, https://ubuntu.com/security/notices/USN-6441-1, https://ubuntu.com/security/notices/USN-6442-1, https://ubuntu.com/security/notices/USN-6443-1, https://ubuntu.com/security/notices/USN-6444-1, https://ubuntu.com/security/notices/USN-6445-1, https://ubuntu.com/security/notices/USN-6446-1, https://ubuntu.com/security/notices/USN-6441-2, https://ubuntu.com/security/notices/USN-6444-2, https://ubuntu.com/security/notices/USN-6445-2, https://ubuntu.com/security/notices/USN-6446-2, https://ubuntu.com/security/notices/USN-6446-3, https://ubuntu.com/security/notices/USN-6454-1, https://ubuntu.com/security/notices/USN-6441-3, https://ubuntu.com/security/notices/USN-6454-2, https://ubuntu.com/security/notices/USN-6466-1, https://ubuntu.com/security/notices/USN-6454-3, https://ubuntu.com/security/notices/USN-6454-4, https://ubuntu.com/security/notices/USN-6479-1, https://www.cve.org/CVERecord?id=CVE-2023-42756

    Affected packages

    Package

    Name: linux-hwe-edge

    Purl: pkg:deb/ubuntu/[email protected]~16.04.1?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-2023-42756 | CVE-DB