SB2019012202 - Denial of service in HAProxy
Published: January 22, 2019
Security Bulletin ID
SB2019012202
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) Out-of-bounds read (CVE-ID: CVE-2018-20615)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to incorrect frame length validation when processing headers with priority flags set. A remote attacker can send a specially crafted HTTP/2 request, trigger our-of-bounds read and crash the affected application.
Remediation
Install update from vendor's website.