SB2018111501 - Denial of service in Asterisk
Published: November 15, 2018
Security Bulletin ID
SB2018111501
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) Buffer overflow (CVE-ID: CVE-2018-19278)
The vulnerability allows a remote attacker to cause DoS condition on the target system.The weakness exists due to buffer overflow in dns_srv and dns_naptr functions when handling malicious input. A remote attacker can supply a specially crafted DNS SRV or NAPTR response, trigger segfault and cause the service to crash.
Remediation
Install update from vendor's website.