Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : libproxy vulnerability (USN-4673-1)

critical Nessus Plugin ID 144704

Synopsis

The remote Ubuntu host is missing a security update.

Description

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 20.10 host has packages installed that are affected by a vulnerability as referenced in the USN-4673-1 advisory.

- url.cpp in libproxy through 0.4.15 is prone to a buffer overflow when PAC is enabled, as demonstrated by a large PAC file that is delivered without a Content-length header. (CVE-2020-26154)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-4673-1

Plugin Details

Severity: Critical

ID: 144704

File Name: ubuntu_USN-4673-1.nasl

Version: 1.5

Type: local

Agent: unix

Published: 1/4/2021

Updated: 10/20/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2020-26154

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: cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libproxy-cil-dev, p-cpe:/a:canonical:ubuntu_linux:libproxy-dev, p-cpe:/a:canonical:ubuntu_linux:libproxy-tools, p-cpe:/a:canonical:ubuntu_linux:libproxy0.4-cil, p-cpe:/a:canonical:ubuntu_linux:libproxy1-plugin-gsettings, p-cpe:/a:canonical:ubuntu_linux:libproxy1-plugin-kconfig, p-cpe:/a:canonical:ubuntu_linux:libproxy1-plugin-mozjs, p-cpe:/a:canonical:ubuntu_linux:libproxy1-plugin-networkmanager, p-cpe:/a:canonical:ubuntu_linux:libproxy1-plugin-webkit, p-cpe:/a:canonical:ubuntu_linux:libproxy1v5, p-cpe:/a:canonical:ubuntu_linux:python-libproxy, p-cpe:/a:canonical:ubuntu_linux:python3-libproxy

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

Exploit Ease: No known exploits are available

Patch Publication Date: 1/4/2021

Vulnerability Publication Date: 9/30/2020

Reference Information

CVE: CVE-2020-26154

USN: 4673-1