SB2021080817 - Out-of-bounds read in Linux kernel
Published: August 8, 2021
Security Bulletin ID
SB2021080817
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2021-38202)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
fs/nfsd/trace.h in the Linux kernel before 5.13.4 might allow remote attackers to cause a denial of service (out-of-bounds read in strlen) by sending NFS traffic when the trace event framework is being used for nfsd.
Remediation
Install update from vendor's website.