CVE-2023-32233

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    CVE-2023-32233

    Published: 8 May 2023Last Modified: 16 Apr 2026

    Summary:

    Details: In the Linux kernel through 6.3.1, a use-after-free in Netfilter nf_tables when processing batch requests can be abused to perform arbitrary read and write operations on kernel memory. Unprivileged local users can obtain root privileges. This occurs because anonymous sets are mishandled.

    References: https://lists.debian.org/debian-lts-announce/2023/07/msg00030.html, http://www.openwall.com/lists/oss-security/2023/05/15/5, https://lists.debian.org/debian-lts-announce/2023/06/msg00008.html, https://security.netapp.com/advisory/ntap-20230616-0002/, https://www.debian.org/security/2023/dsa-5402, https://bugzilla.redhat.com/show_bug.cgi?id=2196105, https://news.ycombinator.com/item?id=35879660, http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html, https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c1592a89942e9678f7d9c8030efa777c0d57edab, https://github.com/torvalds/linux/commit/c1592a89942e9678f7d9c8030efa777c0d57edab, https://www.openwall.com/lists/oss-security/2023/05/08/4

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -c1592a89942e9678f7d9c8030efa777c0d57edab

    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
    CVE-2023-32233 | CVE-DB