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Debian dla-3709 : squid - security update

medium Nessus Plugin ID 189095

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Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3709 advisory.

 - Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to a NULL pointer dereference bug Squid is vulnerable to a Denial of Service attack against Squid's Gopher gateway. The gopher protocol is always available and enabled in Squid prior to Squid 6.0.1. Responses triggering this bug are possible to be received from any gopher server, even those without malicious intent. Gopher support has been removed in Squid version 6.0.1. Users are advised to upgrade. Users unable to upgrade should reject all gopher URL requests. (CVE-2023-46728)

 - SQUID is vulnerable to HTTP request smuggling, caused by chunked decoder lenience, allows a remote attacker to perform Request/Response smuggling past firewall and frontend security systems.
 (CVE-2023-46846)

 - Squid is vulnerable to a Denial of Service, where a remote attacker can perform buffer overflow attack by writing up to 2 MB of arbitrary data to heap memory when Squid is configured to accept HTTP Digest Authentication. (CVE-2023-46847)

 - Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to a Buffer Overread bug Squid is vulnerable to a Denial of Service attack against Squid HTTP Message processing. This bug is fixed by Squid version 6.5. Users are advised to upgrade. There are no known workarounds for this vulnerability.
 (CVE-2023-49285)

 - Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to an Incorrect Check of Function Return Value bug Squid is vulnerable to a Denial of Service attack against its Helper process management. This bug is fixed by Squid version 6.5. Users are advised to upgrade. There are no known workarounds for this vulnerability. (CVE-2023-49286)

 - Squid is a caching proxy for the Web. Due to an Uncontrolled Recursion bug in versions 2.6 through 2.7.STABLE9, versions 3.1 through 5.9, and versions 6.0.1 through 6.5, Squid may be vulnerable to a Denial of Service attack against HTTP Request parsing. This problem allows a remote client to perform Denial of Service attack by sending a large X-Forwarded-For header when the follow_x_forwarded_for feature is configured. This bug is fixed by Squid version 6.6. In addition, patches addressing this problem for the stable releases can be found in Squid's patch archives. (CVE-2023-50269)

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

Solution

Upgrade the squid packages.

See Also

https://security-tracker.debian.org/tracker/source-package/squid

https://security-tracker.debian.org/tracker/CVE-2023-46728

https://security-tracker.debian.org/tracker/CVE-2023-46846

https://security-tracker.debian.org/tracker/CVE-2023-46847

https://security-tracker.debian.org/tracker/CVE-2023-49285

https://security-tracker.debian.org/tracker/CVE-2023-49286

https://security-tracker.debian.org/tracker/CVE-2023-50269

https://packages.debian.org/source/buster/squid

Plugin Details

Severity: Medium

ID: 189095

File Name: debian_DLA-3709.nasl

Version: 1.0

Type: local

Agent: unix

Published: 1/16/2024

Updated: 1/16/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2023-46846

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:N/I:L/A:N

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:squid-cgi, p-cpe:/a:debian:debian_linux:squid, cpe:/o:debian:debian_linux:10.0, p-cpe:/a:debian:debian_linux:squid-purge, p-cpe:/a:debian:debian_linux:squid-common, p-cpe:/a:debian:debian_linux:squid3, p-cpe:/a:debian:debian_linux:squidclient

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

Exploit Ease: No known exploits are available

Patch Publication Date: 1/9/2024

Vulnerability Publication Date: 10/25/2023

Reference Information

CVE: CVE-2023-46728, CVE-2023-46846, CVE-2023-46847, CVE-2023-49285, CVE-2023-49286, CVE-2023-50269