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Ubuntu 16.04 LTS / 18.04 LTS : Cyrus SASL vulnerability (USN-4256-1)

high Nessus Plugin ID 133352

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Synopsis

The remote Ubuntu host is missing a security update.

Description

It was discovered that Cyrus SASL incorrectly handled certain LDAP packets. An attacker could possibly use this issue to execute arbitrary code or cause a denial of service.

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

Solution

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-4256-1

Plugin Details

Severity: High

ID: 133352

File Name: ubuntu_USN-4256-1.nasl

Version: 1.6

Type: local

Agent: unix

Published: 1/30/2020

Updated: 10/20/2023

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, 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:canonical:ubuntu_linux:sasl2-bin, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libsasl2-2, p-cpe:/a:canonical:ubuntu_linux:libsasl2-dev, p-cpe:/a:canonical:ubuntu_linux:libsasl2-modules, p-cpe:/a:canonical:ubuntu_linux:libsasl2-modules-db, p-cpe:/a:canonical:ubuntu_linux:libsasl2-modules-gssapi-heimdal, p-cpe:/a:canonical:ubuntu_linux:libsasl2-modules-gssapi-mit, p-cpe:/a:canonical:ubuntu_linux:libsasl2-modules-ldap, p-cpe:/a:canonical:ubuntu_linux:libsasl2-modules-otp, p-cpe:/a:canonical:ubuntu_linux:libsasl2-modules-sql

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/28/2020

Vulnerability Publication Date: 12/19/2019

Reference Information

CVE: CVE-2019-19906

USN: 4256-1