SB2019100403 - OpenSUSE Linux update for mosquitto
Published: October 4, 2019
Security Bulletin ID
SB2019100403
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) Stack-based buffer overflow (CVE-ID: CVE-2019-11779)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error when processing an overly long SUBSCRIBE packet containing a topic that consists of approximately 65400 or more '/' characters. A malicious MQTT client can send a specially crafted SUBSCRIBE packet, trigger stack overflow and perform denial of service attack.
Remediation
Install update from vendor's website.