Debian dsa-6523 : heif-gdk-pixbuf - security update

high Nessus Plugin ID 370003

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-6523 advisory.

- ------------------------------------------------------------------------- Debian Security Advisory DSA-6523-1 [email protected] https://www.debian.org/security/ Aron Xu September 28, 2026 https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : libheif CVE ID : CVE-2026-84384 CVE-2026-84444 CVE-2026-84446 CVE-2026-84447 CVE-2026-84448 CVE-2026-84450 CVE-2026-84451

Multiple security issues were discovered in libheif, an ISO/IEC 23008-12 HEIF and AVIF image file format decoder and encoder, which may result in denial of service, the disclosure of sensitive memory contents or, potentially, the execution of arbitrary code if a malformed image file is processed.

Besides the CVEs listed above, this update also fixes a number of issues tracked upstream as GHSA-x8r2-mggj-j6wr, GHSA-w7mc-p8jc-p853, GHSA-9rj8-5mp5-26c9, GHSA-4jqm-2x34-6f6r, GHSA-vg7w-rp49-4fc2, GHSA-5w8x-856j-7x7c, GHSA-fqpw-fj22-78w4, GHSA-prgh-72vc-3xmc, GHSA-xrp2-63fq-jm8q, GHSA-4rv4-953r-p24q and GHSA-rhgw-q5g8-xjh2, and had no CVE assigned when this advisory was published.

For the stable distribution (trixie), these problems have been fixed in version 1.23.4-1~deb13u1.

We recommend that you upgrade your libheif packages.

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

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 heif-gdk-pixbuf packages.

Plugin Details

Severity: High

ID: 370003

File Name: debian_DSA-6523.nasl

Version: 1.2

Type: Local

Agent: unix

Family: Debian Local Security Checks

Published: 10/21/2026

Updated: 10/22/2026

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: 53.42

CVSS v2

Risk Factor: High

Base Score: 7.1

Temporal Score: 5.3

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

CVSS Score Source: CVE-2026-84444

CVSS v3

Risk Factor: High

Base Score: 7.4

Temporal Score: 6.4

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

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:13.0, p-cpe:/a:debian:debian_linux:heif-gdk-pixbuf, p-cpe:/a:debian:debian_linux:heif-thumbnailer, p-cpe:/a:debian:debian_linux:libheif-dev, p-cpe:/a:debian:debian_linux:libheif-examples, p-cpe:/a:debian:debian_linux:libheif-plugin-aomdec, p-cpe:/a:debian:debian_linux:libheif-plugin-aomenc, p-cpe:/a:debian:debian_linux:libheif-plugin-dav1d, p-cpe:/a:debian:debian_linux:libheif-plugin-ffmpegdec, p-cpe:/a:debian:debian_linux:libheif-plugin-j2kdec, p-cpe:/a:debian:debian_linux:libheif-plugin-j2kenc, p-cpe:/a:debian:debian_linux:libheif-plugin-jpegdec, p-cpe:/a:debian:debian_linux:libheif-plugin-jpegenc, p-cpe:/a:debian:debian_linux:libheif-plugin-kvazaar, p-cpe:/a:debian:debian_linux:libheif-plugin-libde265, p-cpe:/a:debian:debian_linux:libheif-plugin-rav1e, p-cpe:/a:debian:debian_linux:libheif-plugin-svtenc, p-cpe:/a:debian:debian_linux:libheif-plugin-x265, p-cpe:/a:debian:debian_linux:libheif-plugins-all, p-cpe:/a:debian:debian_linux:libheif1

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/28/2026

Vulnerability Publication Date: 9/18/2026

Reference Information

CVE: CVE-2026-84384, CVE-2026-84444, CVE-2026-84446, CVE-2026-84447, CVE-2026-84448, CVE-2026-84450, CVE-2026-84451

IAVB: 2026-B-0281

Detections

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