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Debian: Security Advisory for dovecot (DSA-4825-1)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
The remote host is missing an update for the 'dovecot' package(s) announced via the DSA-4825-1 advisory.
Insight
Insight
Several vulnerabilities have been discovered in the Dovecot email server. CVE-2020-24386 When imap hibernation is active, an attacker (with valid credentials to access the mail server) can cause Dovecot to discover file system directory structures and access other users' emails via specially crafted commands. CVE-2020-25275Innokentii Sennovskiy reported that the mail delivery and parsing in Dovecot can crash when the 10000th MIME part is message/rfc822 (or if the parent was multipart/digest). This flaw was introduced by earlier changes addressing CVE-2020-12100 .
Affected Software
Affected Software
'dovecot' package(s) on Debian Linux.
Detection Method
Detection Method
Checks if a vulnerable package version is present on the target host.
Solution
Solution
For the stable distribution (buster), these problems have been fixed in version 1:2.3.4.1-5+deb10u5. We recommend that you upgrade your dovecot packages.