Vulnerability Description
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.
CVSS Score
7.8
HIGH
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 4.18 |
Related Weaknesses (CWE)
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-LS
- http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackwar
- 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=c9PatchVendor Advisory
- 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&%3Butm_medi
FAQ
What is CVE-2018-20976?
CVE-2018-20976 is a vulnerability with a CVSS score of 7.8 (HIGH). 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.
How severe is CVE-2018-20976?
CVE-2018-20976 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-20976?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.