#VU63685 Resource management error in 3rd Gen AMD EPYC Processors - CVE-2021-26348

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU63685

#VU63685 Resource management error in 3rd Gen AMD EPYC Processors - CVE-2021-26348

Published: May 25, 2022


Vulnerability identifier: #VU63685
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-26348
CWE-ID: CWE-399
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
3rd Gen AMD EPYC Processors
Software vendor:
AMD

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to failure to flush the Translation Lookaside Buffer (TLB) of the I/O memory management unit (IOMMU). A local user can force the IO device into writing data to memory it should not be able to access.


Remediation

Install updates from vendor's website.

External links