What’s Vulnerable › Vulnerabilities
CVE-2020-14385
- Severity: medium (CVSS 5.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2020-09-15 · updated 2026-06-17
- Weakness: CWE-131
Description
A flaw was found in the Linux kernel before 5.9-rc4. A failure of the file system metadata validator in XFS can cause an inode with a valid, user-creatable extended attribute to be flagged as corrupt. This can lead to the filesystem being shutdown, or otherwise rendered inaccessible until it is remounted, leading to a denial of service. The highest threat from this vulnerability is to system availability.
Affected products
- Canonical Ubuntu Linux: 18.04, 20.04
- Debian Linux: 9.0
- Linux kernel: before 5.9.0; 5.9.0, 5.9.0-rc1, 5.9.0-rc2, 5.9.0-rc3 — fixed in 5.9.0
How to fix
Upgrade to a fixed version: Linux kernel 5.9.0. Check the vendor advisory for mitigations.
References
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00001.html
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14385
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f4020438fab05364018c91f7e02ebdd192085933
- https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html
- https://usn.ubuntu.com/4576-1/
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00001.html
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14385
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f4020438fab05364018c91f7e02ebdd192085933
- https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html
- https://usn.ubuntu.com/4576-1/
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