CVE-2019-11323 — Use of a Broken or Risky Cryptographic Algorithm in Haproxy

CWE-327 — Use of a Broken or Risky Cryptographic AlgorithmCWE-908 — Use of Uninitialized ResourceCWE-200 — Sensitive Information Exposure6 documents5 sources
Severity
5.9MEDIUMNVD
EPSS
0.0%
top 99.23%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
HaproxyDebian Haproxy
Timeline
PublishedMay 9
Latest updateMay 24

Description

HAProxy before 1.9.7 mishandles a reload with rotated keys, which triggers use of uninitialized, and very predictable, HMAC keys. This is related to an include/types/ssl_sock.h error.

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:NExploitability: 2.2 | Impact: 3.6

Affected Packages2 packages

▶NVDhaproxy/haproxy1.9.2 — 1.9.7

🔴Vulnerability Details

1
GHSA
GHSA-45jj-f42x-jm68: HAProxy before 1↗2022-05-24
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📋Vendor Advisories

2
Red Hat
haproxy: weak HMAC keys used to TLS session resumption after reload with rotated keys↗2019-04-14
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Debian
CVE-2019-11323: haproxy - HAProxy before 1.9.7 mishandles a reload with rotated keys, which triggers use o...↗2019
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💬Community

2
Bugzilla
CVE-2019-11323 haproxy: weak HMAC keys used to TLS session resumption after reload with rotated keys↗2019-05-13
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Bugzilla
CVE-2019-11323 haproxy: rotated key information disclosure [fedora-all]↗2019-05-13
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CVE-2019-11323 — Haproxy vulnerability | cvebase