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    CVE-2018-20976

    An issue was discovered in fs/xfs/xfs_super.c in the Linux kernel before 4.18. A use after free exists, related to xfs_fs_fill_super failure.

    Published:May 15, 2018
    Last Modified:Nov 21, 2024
    EPS:Aug 19, 2019
    EPSS Score:0.00097
    CVSS Score:7.8

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Mrg
    Vendor
    Redhat
    Product
    Rhel Aus
    Vendor
    Redhat
    Product
    Rhel E4s
    Vendor
    Redhat
    Product
    Rhel Eus
    Vendor
    Redhat
    Product
    Rhel Tus

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-416 Use After Free

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    CVE-2026-80922 — In the Linux kernel, the following vulnerability has been resolved: crypto: qcom-rng - Allow zero as a random…
    CVE-2026-80921 (CVSS 8.8) — In the Linux kernel, the following vulnerability has been resolved: KVM: s390: vsie: zero stale crypto bits …
    CVE-2026-80920 — In the Linux kernel, the following vulnerability has been resolved: io_uring: defer eventfd signaling when qu…
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    CVE-2026-80918 — In the Linux kernel, the following vulnerability has been resolved: HID: core: fix number/pointer type confus…
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    References

    http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html
    http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html
    http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html
    http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
    https://access.redhat.com/errata/RHSA-2020:0178
    https://access.redhat.com/errata/RHSA-2020:0543
    https://access.redhat.com/errata/RHSA-2020:0592
    https://access.redhat.com/errata/RHSA-2020:0609
    https://access.redhat.com/errata/RHSA-2020:0661
    https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c9fbd7bbc23dbdd73364be4d045e5d3612cf6e82
    https://lists.debian.org/debian-lts-announce/2019/09/msg00025.html
    https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
    https://seclists.org/bugtraq/2019/Nov/11
    https://security.netapp.com/advisory/ntap-20190905-0002/
    https://support.f5.com/csp/article/K10269585?utm_source=f5support&amp%3Butm_medium=RSS
    https://usn.ubuntu.com/4144-1/
    https://usn.ubuntu.com/4145-1/
    http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html
    http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html
    http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html
    http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
    https://access.redhat.com/errata/RHSA-2020:0178
    https://access.redhat.com/errata/RHSA-2020:0543
    https://access.redhat.com/errata/RHSA-2020:0592
    https://access.redhat.com/errata/RHSA-2020:0609
    https://access.redhat.com/errata/RHSA-2020:0661
    https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c9fbd7bbc23dbdd73364be4d045e5d3612cf6e82
    https://lists.debian.org/debian-lts-announce/2019/09/msg00025.html
    https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
    https://seclists.org/bugtraq/2019/Nov/11
    https://security.netapp.com/advisory/ntap-20190905-0002/
    https://support.f5.com/csp/article/K10269585?utm_source=f5support&amp%3Butm_medium=RSS
    https://usn.ubuntu.com/4144-1/
    https://usn.ubuntu.com/4145-1/

    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