SB2018041043 - Red Hat update for policycoreutils
Published: April 10, 2018 Updated: April 13, 2018
Security Bulletin ID
SB2018041043
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Symlink attack (CVE-ID: CVE-2018-1063)
CWE-ID: CWE-61 - UNIX Symbolic Link (Symlink) Following
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local attacker to launch symlink attack on the target system.
The weakness exists in the /tmp and /var/tmp directories improper security restrictions when presenting the relabeling process through symlinks. A local attacker can modify the SELinux context of arbitrary files and conduct symlink attacks.
Remediation
Install update from vendor's website.