CVE-2019-13233

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    CVE-2019-13233

    Published: 4 Jul 2019Last Modified: 15 Mar 2026

    Summary:

    Details: In arch/x86/lib/insn-eval.c in the Linux kernel before 5.1.9, there is a use-after-free for access to an LDT entry because of a race condition between modify_ldt() and a #BR exception for an MPX bounds violation.

    References: http://packetstormsecurity.com/files/154408/Kernel-Live-Patch-Security-Notice-LSN-0055-1.html, https://usn.ubuntu.com/4118-1/, https://support.f5.com/csp/article/K13331647?utm_source=f5support&amp%3Butm_medium=RSS, https://usn.ubuntu.com/4093-1/, https://usn.ubuntu.com/4094-1/, https://usn.ubuntu.com/4117-1/, http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00025.html, https://seclists.org/bugtraq/2019/Aug/13, https://access.redhat.com/errata/RHSA-2019:3517, https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.9, https://security.netapp.com/advisory/ntap-20190806-0001/, https://access.redhat.com/errata/RHSA-2019:3309, https://www.debian.org/security/2019/dsa-4495, https://github.com/torvalds/linux/commit/de9f869616dd95e95c00bdd6b0fcd3421e8a4323, https://bugs.chromium.org/p/project-zero/issues/detail?id=1879, https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=de9f869616dd95e95c00bdd6b0fcd3421e8a4323

    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