SB2016013002 - Security features bypass in chrony (Alpine package)
Published: January 30, 2016
Security Bulletin ID
SB2016013002
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Security features bypass (CVE-ID: CVE-2016-1567)
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
chrony before 1.31.2 and 2.x before 2.2.1 do not verify peer associations of symmetric keys when authenticating packets, which might allow remote attackers to conduct impersonation attacks via an arbitrary trusted key, aka a "skeleton key."
Remediation
Install update from vendor's website.