UBUNTU-CVE-2023-6111

    Dashboard / Vulnerabilities / UBUNTU-CVE-2023-6111

    UBUNTU-CVE-2023-6111

    Published: 14 Nov 2023Last Modified: 4 Feb 2026
    Upstream:
    CVE-2023-6111
    Aliases:
    USN-6576-1

    Summary:

    Details: A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. The function nft_trans_gc_catchall did not remove the catchall set element from the catchall_list when the argument sync is true, making it possible to free a catchall set element many times. We recommend upgrading past commit 93995bf4af2c5a99e2a87f0cd5ce547d31eb7630.

    References: https://ubuntu.com/security/CVE-2023-6111, https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=93995bf4af2c5a99e2a87f0cd5ce547d31eb7630, https://patchwork.ozlabs.org/project/netfilter-devel/patch/[email protected]/, https://ubuntu.com/security/notices/USN-6576-1, https://www.cve.org/CVERecord?id=CVE-2023-6111

    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-2023-6111 | CVE-DB