Debian DLA-1945-1 : openconnect security update

critical Nessus Plugin ID 129572

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Synopsis

The remote Debian host is missing a security update.

Description

A vulnerability was discovered by Lukas Kupczyk of the Advanced Research Team at CrowdStrike Intelligence in OpenConnect, an open client for Cisco AnyConnect, Pulse, GlobalProtect VPN. A malicious HTTP server (after its identity certificate has been accepted) can provide bogus chunk lengths for chunked HTTP encoding and cause a heap overflow.

For Debian 8 'Jessie', this problem has been fixed in version 6.00-2+deb8u1.

We recommend that you upgrade your openconnect 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.

Plugin Details

Severity: Critical

ID: 129572

File Name: debian_DLA-1945.nasl

Version: 1.6

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 10/4/2019

Updated: 4/19/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2019-16239

CVSS v3

Risk Factor: Critical

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:openconnect, p-cpe:/a:debian:debian_linux:libopenconnect3-dbg, p-cpe:/a:debian:debian_linux:libopenconnect3, p-cpe:/a:debian:debian_linux:openconnect-dbg, cpe:/o:debian:debian_linux:8.0, p-cpe:/a:debian:debian_linux:libopenconnect-dev

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/3/2019

Vulnerability Publication Date: 9/17/2019

Reference Information

CVE: CVE-2019-16239

Detections

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