UBUNTU-CVE-2023-45898

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    UBUNTU-CVE-2023-45898

    Published: 16 Oct 2023Last Modified: 4 Feb 2026
    Upstream:
    CVE-2023-45898

    Summary:

    Details: The Linux kernel before 6.5.4 has an es1 use-after-free in fs/ext4/extents_status.c, related to ext4_es_insert_extent.

    References: https://ubuntu.com/security/CVE-2023-45898, https://git.kernel.org/linus/768d612f79822d30a1e7d132a4d4b05337ce42ec, https://github.com/torvalds/linux/commit/768d612f79822d30a1e7d132a4d4b05337ce42ec, https://lore.kernel.org/lkml/[email protected]/T/, https://www.spinics.net/lists/stable-commits/msg317086.html, https://lkml.org/lkml/2023/8/13/477, https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.4, https://lore.kernel.org/lkml/CALcu4raD4h9coiyEBL4Bm0zjDwxC2CyPiTwsP3zFuhot6y9Beg@mail.gmail.com/, https://lore.kernel.org/all/[email protected]/, https://ubuntu.com/security/notices/USN-6536-1, https://ubuntu.com/security/notices/USN-6537-1, https://ubuntu.com/security/notices/USN-6573-1, https://www.cve.org/CVERecord?id=CVE-2023-45898

    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-2023-45898 | CVE-DB