Detections
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Ubuntu 25.10 / 26.04 LTS : libheif vulnerabilities (USN-8479-1)

medium Nessus Plugin ID 323914

Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 25.10 / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8479-1 advisory.

 It was discovered that libheif incorrectly handled certain crafted HEIF files. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2026-47178)

 It was discovered that libheif incorrectly validated offsets when decoding certain crafted HEIF files. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-49271)

Tenable has extracted the preceding description block directly from the Ubuntu 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

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-8479-1

Plugin Details

Severity: Medium

ID: 323914

File Name: ubuntu_USN-8479-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 6/30/2026

Updated: 6/30/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.3

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2026-47178

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

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

CVSS Score Source: CVE-2026-49271

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:heif-view, p-cpe:/a:canonical:ubuntu_linux:heif-thumbnailer, p-cpe:/a:canonical:ubuntu_linux:libheif-plugin-ffmpegdec, p-cpe:/a:canonical:ubuntu_linux:libheif-plugins-all, p-cpe:/a:canonical:ubuntu_linux:libheif-plugin-jpegenc, p-cpe:/a:canonical:ubuntu_linux:heif-gdk-pixbuf, p-cpe:/a:canonical:ubuntu_linux:libheif-dev, p-cpe:/a:canonical:ubuntu_linux:libheif-plugin-j2kenc, cpe:/o:canonical:ubuntu_linux:25.10, p-cpe:/a:canonical:ubuntu_linux:libheif-plugin-x265, p-cpe:/a:canonical:ubuntu_linux:libheif-plugin-aomdec, p-cpe:/a:canonical:ubuntu_linux:libheif-plugin-j2kdec, p-cpe:/a:canonical:ubuntu_linux:libheif-plugin-libde265, p-cpe:/a:canonical:ubuntu_linux:libheif-plugin-svtenc, p-cpe:/a:canonical:ubuntu_linux:libheif1, p-cpe:/a:canonical:ubuntu_linux:libheif-examples, p-cpe:/a:canonical:ubuntu_linux:libheif-plugin-dav1d, p-cpe:/a:canonical:ubuntu_linux:libheif-plugin-rav1e, cpe:/o:canonical:ubuntu_linux:26.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libheif-plugin-jpegdec, p-cpe:/a:canonical:ubuntu_linux:libheif-plugin-kvazaar, p-cpe:/a:canonical:ubuntu_linux:libheif-plugin-aomenc

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

Exploit Ease: No known exploits are available

Patch Publication Date: 6/29/2026

Vulnerability Publication Date: 6/18/2026

Reference Information

CVE: CVE-2026-47178, CVE-2026-49271

IAVB: 2026-B-0158

USN: 8479-1