SB2018052227 - Assertion failure in bind (Alpine package)
Published: May 22, 2018
Security Bulletin ID
SB2018052227
Severity
Medium
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) Assertion failure (CVE-ID: CVE-2018-5736)
The vulnerability allows a remote authenticated attacker to cause DoS condition on the target system.
The weakness exists due to an error in zone database reference counting. A remote authenticated attacker who is able to cause the target server to initiate zone transfers (e.g., can send NOTIFY messages) can cause several transfers of a slave zone in quick succession to trigger an assertion in 'rbtdb.c' and cause 'named' to crash.
Remediation
Install update from vendor's website.