CVE-2021-39240
medium
CVSS v3
—
CVSS v2
—
VIR risk
5.5
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.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-39240
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2021-39240.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 2.4.3-1 | |
| sles | affected | | |
| debian | bookworm | fixed | 2.2.16-1 |
| debian | bullseye | fixed | 2.2.9-2+deb11u1 |
| debian | forky | fixed | 2.2.16-1 |
| debian | sid | fixed | 2.2.16-1 |
| debian | trixie | fixed | 2.2.16-1 |
References
Verify integrity in audit chain (admin only). AS-IS.