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Debian dla-4661 : jq - security update

medium Nessus Plugin ID 324574

Synopsis

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

Description

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4661 advisory.

 ------------------------------------------------------------------------- Debian LTS Advisory DLA-4661-1 [email protected] https://www.debian.org/lts/security/ Andreas Henriksson July 01, 2026 https://wiki.debian.org/LTS
 -------------------------------------------------------------------------

 Package : jq Version : 1.6-2.1+deb11u3 CVE ID : CVE-2026-43894 CVE-2026-47770 CVE-2026-49839 CVE-2026-54679 Debian Bug : 1136445

 It was found that jq, a lightweight and flexible command-line JSON parser, was vulnerable to multiple memory corruption attacks, which could lead to application crashes, denial-of-service conditions, and potentially arbitrary code execution through heap corruption when parsing untrusted input.

 For Debian 11 bullseye, these problems have been fixed in version 1.6-2.1+deb11u3.

 We recommend that you upgrade your jq packages.

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

 Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS Attachment:
 signature.asc Description: PGP signature

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 jq packages.

See Also

https://packages.debian.org/source/bullseye/jq

https://security-tracker.debian.org/tracker/CVE-2026-43894

https://security-tracker.debian.org/tracker/CVE-2026-47770

https://security-tracker.debian.org/tracker/CVE-2026-49839

https://security-tracker.debian.org/tracker/CVE-2026-54679

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

Plugin Details

Severity: Medium

ID: 324574

File Name: debian_DLA-4661.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 7/1/2026

Updated: 7/1/2026

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.65

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.8

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

CVSS Score Source: CVE-2026-54679

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5

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

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

CVSS v4

Risk Factor: Medium

Base Score: 6.9

Threat Score: 5.5

Threat Vector: CVSS:4.0/E:P

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libjq1, cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:libjq-dev, p-cpe:/a:debian:debian_linux:jq

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: 7/1/2026

Vulnerability Publication Date: 5/11/2026

Reference Information

CVE: CVE-2026-43894, CVE-2026-47770, CVE-2026-49839, CVE-2026-54679