Debian DSA-4510-1 : dovecot - security update

critical Nessus Plugin ID 128307

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Synopsis

The remote Debian host is missing a security-related 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.

Solution

Upgrade the dovecot packages.

For the oldstable distribution (stretch), this problem has been fixed in version 1:2.2.27-3+deb9u5.

For the stable distribution (buster), this problem has been fixed in version 1:2.3.4.1-5+deb10u1.

Plugin Details

Severity: Critical

ID: 128307

File Name: debian_DSA-4510.nasl

Version: 1.4

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 8/29/2019

Updated: 4/30/2024

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2019-11500

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:dovecot, cpe:/o:debian:debian_linux:10.0, cpe:/o:debian:debian_linux:9.0

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/28/2019

Vulnerability Publication Date: 8/29/2019

Reference Information

CVE: CVE-2019-11500

DSA: 4510

Detections

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