CVE-2023-42752

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    CVE-2023-42752

    Published: 13 Oct 2023Last Modified: 31 Mar 2026

    Summary:

    Details: An integer overflow flaw was found in the Linux kernel. This issue leads to the kernel allocating `skb_shared_info` in the userspace, which is exploitable in systems without SMAP protection since `skb_shared_info` contains references to function pointers.

    References: http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html, https://access.redhat.com/security/cve/CVE-2023-42752, https://bugzilla.redhat.com/show_bug.cgi?id=2239828, https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=915d975b2ffa, https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=c3b704d4a4a2

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    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-2023-42752 | CVE-DB