Infinite loop in HAProxy - CVE-2019-14241

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Main Vulnerability Database Vulnerabilities #VU22942

Infinite loop in HAProxy - CVE-2019-14241

Published: November 24, 2019


Vulnerability identifier: #VU22942
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-14241
CWE-ID: CWE-835
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to infinite loop while processing cookies in the htx_manage_client_side_cookies() function in proto_htx.c. A remote attacker can send a specially crafted request to the proxy server, consume all available system resources and cause denial of service conditions.


Affected software

HAProxy
Opensuse
IBM Security Verify Access

How to mitigate CVE-2019-14241

Install updates from vendor's website.

HAProxy - update to 2.0.3
IBM Security Verify Access - update to 10.0.7.0

External References

Related Security Bulletins