Debian DLA-1901-1 : dovecot security update

High Nessus Plugin ID 128393

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VPR Score: 7.4

Synopsis

The remote Debian host is missing a security update.

Description

Nick Roessler and Rafi Rubin discovered that the IMAP and ManageSieve protocol parsers in the Dovecot email server do not properly validate input (both pre- and post-login). A remote attacker can take advantage of this flaw to trigger out of bounds heap memory writes, leading to information leaks or potentially the execution of arbitrary code.

For Debian 8 'Jessie', this problem has been fixed in version 1:2.2.13-12~deb8u7.

We recommend that you upgrade your dovecot packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected packages.

See Also

https://lists.debian.org/debian-lts-announce/2019/08/msg00035.html

https://packages.debian.org/source/jessie/dovecot

Plugin Details

Severity: High

ID: 128393

File Name: debian_DLA-1901.nasl

Version: 1.5

Type: local

Agent: unix

Published: 2019/08/30

Updated: 2021/01/11

Dependencies: 12634

Risk Information

Risk Factor: High

VPR Score: 7.4

CVSS v2.0

Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:dovecot-core, p-cpe:/a:debian:debian_linux:dovecot-dbg, p-cpe:/a:debian:debian_linux:dovecot-dev, p-cpe:/a:debian:debian_linux:dovecot-gssapi, p-cpe:/a:debian:debian_linux:dovecot-imapd, p-cpe:/a:debian:debian_linux:dovecot-ldap, p-cpe:/a:debian:debian_linux:dovecot-lmtpd, p-cpe:/a:debian:debian_linux:dovecot-lucene, p-cpe:/a:debian:debian_linux:dovecot-managesieved, p-cpe:/a:debian:debian_linux:dovecot-mysql, p-cpe:/a:debian:debian_linux:dovecot-pgsql, p-cpe:/a:debian:debian_linux:dovecot-pop3d, p-cpe:/a:debian:debian_linux:dovecot-sieve, p-cpe:/a:debian:debian_linux:dovecot-solr, p-cpe:/a:debian:debian_linux:dovecot-sqlite, cpe:/o:debian:debian_linux:8.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 2019/08/29

Vulnerability Publication Date: 2019/08/29

Reference Information

CVE: CVE-2019-11500