Debian dla-4647 : libyelp-dev - security update

high Nessus Plugin ID 322552

Synopsis

The remote Debian host is missing a security-related update.

Description

The remote Debian 11 host has packages installed that are affected by a vulnerability as referenced in the dla-4647 advisory.

------------------------------------------------------------------------- Debian LTS Advisory DLA-4647-1 [email protected] https://www.debian.org/lts/security/ Daniel Leidert June 25, 2026 https://wiki.debian.org/LTS
-------------------------------------------------------------------------

Package : yelp Version : 3.38.3-1+deb11u2 CVE ID : not assigned Debian Bug : 1136299

A vulnerability was discovered in yelp, the GNOME help browser, that allows a crafted help document to read files accessible to the user and exfiltrate them to a remote server through resources loaded by the embedded web view. When yelp is launched from a sandboxed application (for example via the Flatpak OpenURI portal), this also enables a sandbox escape.

For Debian 11 bullseye, this problem has been fixed in version 3.38.3-1+deb11u2.

We recommend that you upgrade your yelp packages.

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

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: This is a digitally signed message part

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

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

Solution

Upgrade the libyelp-dev packages.

Plugin Details

Severity: High

ID: 322552

File Name: debian_DLA-4647.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Debian Local Security Checks

Published: 6/24/2026

Updated: 6/24/2026

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:yelp, p-cpe:/a:debian:debian_linux:libyelp-dev, p-cpe:/a:debian:debian_linux:libyelp0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 6/25/2026

Vulnerability Publication Date: 6/25/2026

Detections

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