Uninitialized HMAC Keys Vulnerability in HAProxy

Uninitialized HMAC Keys Vulnerability in HAProxy

CVE-2019-11323 · MEDIUM Severity

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

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.

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