vulnerability
Ubuntu: (CVE-2021-39240): haproxy vulnerability
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:N/C:P/I:N/A:N) | Aug 17, 2021 | Nov 19, 2024 | Mar 27, 2026 |
Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
Aug 17, 2021
Added
Nov 19, 2024
Modified
Mar 27, 2026
Description
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.
Solution
ubuntu-upgrade-haproxy
References
- CVE-2021-39240
- https://attackerkb.com/topics/CVE-2021-39240
- DEBIAN-DSA-4960
- EUVD-EUVD-2021-25602
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2021-25602
- https://ubuntu.com/security/notices/USN-5042-1
- https://www.cve.org/CVERecord?id=CVE-2021-39240
- https://www.mail-archive.com/[email protected]/msg41041.html
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