Improper Handling of Exceptional Conditions Affecting haproxy package, versions [2.2.0,2.2.16)[2.3.0,2.3.13)[2.4.0,2.4.3)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.68% (81st percentile)

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  • Snyk IDSNYK-UNMANAGED-HAPROXY-2317778
  • published14 Dec 2021
  • disclosed17 Aug 2021
  • creditUnknown

Introduced: 17 Aug 2021

CVE-2021-39242  (opens in a new tab)
CWE-755  (opens in a new tab)

How to fix?

Upgrade haproxy to version 2.2.16, 2.3.13, 2.4.3 or higher.

Overview

Affected versions of this package are vulnerable to Improper Handling of Exceptional Conditions. An issue was discovered in HAProxy 2.2 before 2.2.16, 2.3 before 2.3.13, and 2.4 before 2.4.3. It can lead to a situation with an attacker-controlled HTTP Host header, because a mismatch between Host and authority is mishandled.

References

CVSS Scores

version 3.1