CVE-2023-0836

Description

An information leak vulnerability was discovered in HAProxy 2.1, 2.2 before 2.2.27, 2.3, 2.4 before 2.4.21, 2.5 before 2.5.11, 2.6 before 2.6.8, 2.7 before 2.7.1. There are 5 bytes left uninitialized in the connection buffer when encoding the FCGI_BEGIN_REQUEST record. Sensitive data may be disclosed to configured FastCGI backends in an unexpected way.

Categories

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.00%
Vendor Advisory debian.org
Affected: n/a HAProxy
Published at:
Updated at:

References

Link Tags
https://git.haproxy.org/?p=haproxy.git%3Ba=commitdiff%3Bh=2e6bf0a
https://www.debian.org/security/2023/dsa-5388 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-0836?
CVE-2023-0836 has been scored as a high severity vulnerability.
How to fix CVE-2023-0836?
To fix CVE-2023-0836, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-0836 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-0836 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-0836?
CVE-2023-0836 affects n/a HAProxy.
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