SB2021031201 - Denial of service in Linux kernel ext3/ext4 file system in F5 BIG-IP
Published: March 12, 2021
Security Bulletin ID
SB2021031201
Severity
Low
Patch available
NO
Number of vulnerabilities
1
Exploitation vector
Local 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-2020-14314)
The vulnerability allows a local authenticated user to perform a denial of service (DoS) attack.
A memory out-of-bounds read flaw was found in the Linux kernel before 5.9-rc2 with the ext3/ext4 file system, in the way it accesses a directory with broken indexing. This flaw allows a local user to crash the system if the directory exists.
Remediation
Cybersecurity Help is not aware of any official remediation provided by the vendor.