CVE-2020-14385

MEDIUM

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.

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/

Details

Source: MITRE

Published: 2020-09-15

Updated: 2020-10-15

Type: CWE-131

Risk Information

CVSS v2.0

Base Score: 4.7

Vector: AV:L/AC:M/Au:N/C:N/I:N/A:C

Impact Score: 6.9

Exploitability Score: 3.4

Severity: MEDIUM

CVSS v3.0

Base Score: 5.5

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 1.8

Severity: MEDIUM