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Debian DLA-2044-1 : cyrus-sasl2 security update

high Nessus Plugin ID 132344

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Synopsis

The remote Debian host is missing a security update.

Description

There has been an out-of-bounds write in Cyrus SASL leading to unauthenticated remote denial of service in OpenLDAP via a malformed LDAP packet. The OpenLDAP crash was ultimately caused by an off-by-one error in _sasl_add_string in common.c in cyrus-sasl.

For Debian 8 'Jessie', this problem has been fixed in version 2.1.26.dfsg1-13+deb8u2.

We recommend that you upgrade your cyrus-sasl2 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/2019/12/msg00027.html

https://packages.debian.org/source/jessie/cyrus-sasl2

Plugin Details

Severity: High

ID: 132344

File Name: debian_DLA-2044.nasl

Version: 1.6

Type: local

Agent: unix

Published: 12/23/2019

Updated: 4/2/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2019-19906

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:cyrus-sasl2-doc, p-cpe:/a:debian:debian_linux:libsasl2-dev, p-cpe:/a:debian:debian_linux:cyrus-sasl2-heimdal-dbg, p-cpe:/a:debian:debian_linux:libsasl2-modules-otp, p-cpe:/a:debian:debian_linux:cyrus-sasl2-dbg, p-cpe:/a:debian:debian_linux:libsasl2-2, p-cpe:/a:debian:debian_linux:cyrus-sasl2-mit-dbg, p-cpe:/a:debian:debian_linux:libsasl2-modules-db, p-cpe:/a:debian:debian_linux:libsasl2-modules-ldap, p-cpe:/a:debian:debian_linux:libsasl2-modules, p-cpe:/a:debian:debian_linux:libsasl2-modules-gssapi-heimdal, p-cpe:/a:debian:debian_linux:libsasl2-modules-gssapi-mit, cpe:/o:debian:debian_linux:8.0, p-cpe:/a:debian:debian_linux:libsasl2-modules-sql, p-cpe:/a:debian:debian_linux:sasl2-bin

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: 12/20/2019

Vulnerability Publication Date: 12/19/2019

Reference Information

CVE: CVE-2019-19906