CVE-2021-29157
high
CVSS v3
—
CVSS v2
—
VIR risk
8.0
Description
Dovecot before 2.3.15 allows ../ Path Traversal. An attacker with access to the local filesystem can trick OAuth2 authentication into using an HS256 validation key from an attacker-controlled location. This occurs during use of local JWT validation with the posix fs driver.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2021-29157.html
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-29157
Vendor advisory: arch — https://security.archlinux.org/ASA-202106-56
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 2.3.15-1 | |
| debian | bookworm | fixed | 1:2.3.13+dfsg1-2 |
| debian | bullseye | fixed | 1:2.3.13+dfsg1-2 |
| debian | forky | fixed | 1:2.3.13+dfsg1-2 |
| debian | sid | fixed | 1:2.3.13+dfsg1-2 |
| debian | trixie | fixed | 1:2.3.13+dfsg1-2 |
| sles | affected | |
References
Verify integrity in audit chain (admin only). AS-IS.