SUSE update for haproxy

1) Input validation error

EUVDB-ID: #VU71431

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-0056

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of user-supplied input within the http_wait_for_response() function when handling HTTP/2 requests. A remote attacker can send a specially crafted HTTP request the proxy server and perform a denial of service (DoS) attack.

Mitigation

Update the affected package haproxy to the latest version.

Vulnerable software versions

openSUSE Leap Micro: 5.3

SUSE Linux Enterprise Micro: 5.3

SUSE Manager Retail Branch Server: 4.3

SUSE Linux Enterprise High Availability: 15-SP4

SUSE Manager Server: 4.3

SUSE Manager Proxy: 4.3

SUSE Linux Enterprise Server: 15-SP4

openSUSE Leap: 15.4

SUSE Linux Enterprise Server for SAP Applications: 15-SP4

SUSE Linux Enterprise High Performance Computing: 15-SP4

haproxy-debugsource: before 2.4.8+git0.d1f8d41e0-150400.3.6.1

haproxy-debuginfo: before 2.4.8+git0.d1f8d41e0-150400.3.6.1

haproxy: before 2.4.8+git0.d1f8d41e0-150400.3.6.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20230153-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.