SB2020012304 - Red Hat Enterprise Linux Server 7.3 update for kernel
Published: January 23, 2020
Security Bulletin ID
SB2020012304
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2018-20976)
The vulnerability allows a local user to compromise vulnerable system.
The vulnerability exists in "fs/xfs/xfs_super.c" due to a use-after-free error when the "xfs_fs_fill_super" fails. A local authenticated user can execute arbitrary code on the target system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
Remediation
Install update from vendor's website.