Ubuntu 20.04 : Squid vulnerabilities (USN-4477-1)

Medium Nessus Plugin ID 140031

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VPR Score: 4.4

Synopsis

The remote Ubuntu host is missing a security-related patch.

Description

Amit Klein discovered that Squid incorrectly validated certain data. A remote attacker could possibly use this issue to perform an HTTP request smuggling attack, resulting in cache poisoning.
(CVE-2020-15810) Regis Leroy discovered that Squid incorrectly validated certain data. A remote attacker could possibly use this issue to perform an HTTP request splitting attack, resulting in cache poisoning. (CVE-2020-15811) Lubos Uhliarik discovered that Squid incorrectly handled certain Cache Digest response messages sent by trusted peers. A remote attacker could possibly use this issue to cause Squid to consume resources, resulting in a denial of service.
(CVE-2020-24606).

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 squid package.

See Also

https://usn.ubuntu.com/4477-1/

Plugin Details

Severity: Medium

ID: 140031

File Name: ubuntu_USN-4477-1.nasl

Version: 1.5

Type: local

Agent: unix

Published: 2020/08/28

Updated: 2020/09/17

Dependencies: 12634

Risk Information

Risk Factor: Medium

VPR Score: 4.4

CVSS Score Source: CVE-2020-15811

CVSS v2.0

Base Score: 4

Temporal Score: 3

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 6.5

Temporal Score: 5.7

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:squid, cpe:/o:canonical:ubuntu_linux:20.04

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2020/08/27

Vulnerability Publication Date: 2020/08/24

Reference Information

CVE: CVE-2020-15810, CVE-2020-15811, CVE-2020-24606

USN: 4477-1

IAVB: 2020-B-0050