SB2017100223 - Memory corruption in dnsmasq (Alpine package)
Published: October 2, 2017
Security Bulletin ID
SB2017100223
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) Memory corruption (CVE-ID: CVE-2017-13704)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to boundary error in when processing DNS queries longer than 512 bytes or EDNS0 packet size is different. A remote unauthenticated attacker can send a specially crafted DNS request to the affected service and trigger the application crash.
Successful exploitation of this vulnerability may allow an attacker to perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.