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Debian dsa-6360 : squid - security update

critical Nessus Plugin ID 321872

Synopsis

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

Description

The remote Debian 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6360 advisory.

 - ------------------------------------------------------------------------- Debian Security Advisory DSA-6360-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff June 21, 2026 https://www.debian.org/security/faq
 - -------------------------------------------------------------------------

 Package : squid CVE ID : CVE-2026-33515 CVE-2026-33526 CVE-2026-47729 CVE-2026-50012

 Multiple security issues were discovered in the Squid proxy caching server, which could result in information disclosure or denial of service.

 For the stable distribution (trixie), these problems have been fixed in version 6.13-2+deb13u2.

 We recommend that you upgrade your squid packages.

 For the detailed security status of squid please refer to its security tracker page at:
 https://security-tracker.debian.org/tracker/squid

 Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/

 Mailing list: [email protected]

Tenable has extracted the preceding description block directly from the Debian security advisory.

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://packages.debian.org/source/trixie/squid

https://security-tracker.debian.org/tracker/CVE-2026-33515

https://security-tracker.debian.org/tracker/CVE-2026-33526

https://security-tracker.debian.org/tracker/CVE-2026-47729

https://security-tracker.debian.org/tracker/CVE-2026-50012

Plugin Details

Severity: Critical

ID: 321872

File Name: debian_DSA-6360.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 6/21/2026

Updated: 6/21/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 5

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

CVSS Score Source: CVE-2026-33515

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.9

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

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

CVSS v4

Risk Factor: Critical

Base Score: 9.2

Threat Score: 8.7

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H

CVSS Score Source: CVE-2026-33526

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:squid-cgi, p-cpe:/a:debian:debian_linux:squid, p-cpe:/a:debian:debian_linux:squid-purge, p-cpe:/a:debian:debian_linux:squid-common, p-cpe:/a:debian:debian_linux:squid-openssl, p-cpe:/a:debian:debian_linux:squidclient, cpe:/o:debian:debian_linux:13.0

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/21/2026

Vulnerability Publication Date: 3/26/2026

Reference Information

CVE: CVE-2026-33515, CVE-2026-33526, CVE-2026-47729, CVE-2026-50012

IAVB: 2026-B-0076-S, 2026-B-0165