UBUNTU-CVE-2023-42752

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    UBUNTU-CVE-2023-42752

    Published: 13 Oct 2023Last Modified: 9 Sept 2026
    Upstream:
    CVE-2023-42752
    Aliases:
    USN-6439-1
    USN-6439-2
    USN-6440-1

    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: https://ubuntu.com/security/CVE-2023-42752, https://www.openwall.com/lists/oss-security/2023/09/18/3, https://git.kernel.org/linus/915d975b2ffa58a14bfcf16fafe00c41315949ff, https://git.kernel.org/linus/c3b704d4a4a265660e665df51b129e8425216ed1, https://ubuntu.com/security/notices/USN-6439-1, https://ubuntu.com/security/notices/USN-6440-1, 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-6440-2, https://ubuntu.com/security/notices/USN-6439-2, 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-6440-3, https://ubuntu.com/security/notices/USN-6446-3, https://ubuntu.com/security/notices/USN-6441-3, https://ubuntu.com/security/notices/USN-6460-1, https://ubuntu.com/security/notices/USN-6466-1, https://www.cve.org/CVERecord?id=CVE-2023-42752

    Affected packages

    Package

    Name: linux

    Purl: pkg:deb/ubuntu/linux?arch=source&distro=trusty%2Fesm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.13.0-194.245

    Affected versions

    3.11.0-12.19

    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-2023-42752 | CVE-DB