vulnerability
Ubuntu: USN-4993-1 (CVE-2021-29157): Dovecot vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 2 | (AV:L/AC:L/Au:N/C:P/I:N/A:N) | Jun 21, 2021 | Jun 21, 2021 | Aug 18, 2025 |
Severity
2
CVSS
(AV:L/AC:L/Au:N/C:P/I:N/A:N)
Published
Jun 21, 2021
Added
Jun 21, 2021
Modified
Aug 18, 2025
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.
Solution
ubuntu-upgrade-dovecot-core
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