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    CVE-2019-13233

    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.

    Published:Jul 4, 2019
    Last Modified:Nov 21, 2024
    EPS:Jul 4, 2019
    EPSS Score:0.00054
    CVSS Score:7

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Rhel Eus
    Vendor
    Redhat
    Product
    Rhel Extras Rt

    Exploits

    https://bugs.chromium.org/p/project-zero/issues/detail?id=1879https://bugs.chromium.org/p/project-zero/issues/detail?id=1879

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    References

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

    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