SB2019020912 - Memory corruption in dhcp (Alpine package)
Published: February 9, 2019
Security Bulletin ID
SB2019020912
Severity
Low
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) Memory corruption (CVE-ID: CVE-2018-5733)
The vulnerability allows a remote attacker to cause DoS condition on the target system.The weakness exists in the dhcpd due to improper handling of reference counting when processing client requests. A remote attacker can send large amounts of data to the target server can send a large number of packets, trigger a reference counter overflow and cause the target dhcpd service to consume all available memory and crash.
Remediation
Install update from vendor's website.