#VU58841 Buffer overflow in Linux kernel - CVE-2020-14385
Published: December 13, 2021
Vulnerability identifier: #VU58841
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-14385
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in the file system metadata validator in XFS. A local user can cause an inode with a valid, user-creatable extended attribute to be flagged as corrupt and shutdown the the filesystem.
Remediation
Install updates from vendor's website.
External links
- 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/