Debian: DSA-4418-1: dovecot security update

A vulnerability was discovered in the Dovecot email server. When reading FTS or POP3-UIDL headers from the Dovecot index, the input buffer size is not bounds-checked. An attacker with the ability to modify dovecot indexes, can take advantage of this flaw for privilege escalation or the

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Debian Security Advisory DSA-4418-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
https://www.debian.org/security/                     Salvatore Bonaccorso
March 28, 2019                        https://www.debian.org/security/faq
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Package        : dovecot
CVE ID         : CVE-2019-7524

A vulnerability was discovered in the Dovecot email server. When reading
FTS or POP3-UIDL headers from the Dovecot index, the input buffer size
is not bounds-checked. An attacker with the ability to modify dovecot
indexes, can take advantage of this flaw for privilege escalation or the
execution of arbitrary code with the permissions of the dovecot user.
Only installations using the FTS or pop3 migration plugins are affected.

For the stable distribution (stretch), this problem has been fixed in
version 1:2.2.27-3+deb9u4.

We recommend that you upgrade your dovecot packages.

For the detailed security status of dovecot please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/dovecot

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

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