CVE-2021-39240

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Summary:

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 does not ensure that the scheme and path portions of a URI have the expected characters. For example, the authority field (as observed on a target HTTP/2 server) might differ from what the routing rules were intended to achieve.

Reference Links(if available):

  • https://git.haproxy.org/?p=haproxy.git;a=commit;h=a495e0d94876c9d39763db319f609351907a31e8
  • https://git.haproxy.org/?p=haproxy.git;a=commit;h=4b8852c70d8c4b7e225e24eb58258a15eb54c26e
  • https://www.mail-archive.com/[email protected]/msg41041.html
  • https://www.debian.org/security/2021/dsa-4960
  • CVSS Score (if available)

    v2: / MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N

    v3: / HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

    Links to Exploits(if available)

  • Available for Amazon Prime