MGASA-2021-0557

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MGASA-2021-0557

Summary: Updated dovecot packages fix security vulnerabilities

Details: Updated dovecot packages fix security vulnerabilities: The Sieve engine in Dovecot before 2.3.15 allows Uncontrolled Resource Consumption, as demonstrated by a situation with a complex regular expression for the regex extension (CVE-2020-28200). 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 (CVE-2021-29157). The submission service in Dovecot before 2.3.15 allows STARTTLS command injection in lib-smtp. Sensitive information can be redirected to an attacker-controlled address (CVE-2021-33515).

References: https://advisories.mageia.org/MGASA-2021-0557.html, https://bugs.mageia.org/show_bug.cgi?id=29160, https://dovecot.org/pipermail/dovecot-news/2021-June/000460.html, https://dovecot.org/pipermail/dovecot-news/2021-June/000461.html, https://dovecot.org/pipermail/dovecot-news/2021-June/000462.html, https://dovecot.org/pipermail/dovecot-news/2021-June/000459.html, https://dovecot.org/pipermail/dovecot-news/2021-June/000457.html, https://dovecot.org/pipermail/dovecot-news/2021-October/000465.html, https://dovecot.org/pipermail/dovecot-news/2021-December/000468.html