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Ubuntu 18.04 LTS / 20.04 LTS : Squid vulnerability (USN-5104-1)

medium Nessus Plugin ID 153888

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Synopsis

The remote Ubuntu host is missing a security update.

Description

The remote Ubuntu 18.04 LTS / 20.04 LTS / 21.04 host has packages installed that are affected by a vulnerability as referenced in the USN-5104-1 advisory.

 - Squid through 4.14 and 5.x through 5.0.5, in some configurations, allows information disclosure because of an out-of-bounds read in WCCP protocol data. This can be leveraged as part of a chain for remote code execution as nobody. (CVE-2021-28116)

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-5104-1

Plugin Details

Severity: Medium

ID: 153888

File Name: ubuntu_USN-5104-1.nasl

Version: 1.4

Type: local

Agent: unix

Published: 10/5/2021

Updated: 10/16/2023

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

Risk Information

VPR

Risk Factor: Low

Score: 1.4

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

CVSS Score Source: CVE-2021-28116

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

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

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:squid, p-cpe:/a:canonical:ubuntu_linux:squid-cgi, p-cpe:/a:canonical:ubuntu_linux:squid-common, p-cpe:/a:canonical:ubuntu_linux:squid-purge, p-cpe:/a:canonical:ubuntu_linux:squid3, p-cpe:/a:canonical:ubuntu_linux:squidclient

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/5/2021

Vulnerability Publication Date: 3/9/2021

Reference Information

CVE: CVE-2021-28116

USN: 5104-1