Detections
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Ubuntu 24.04 LTS / 26.04 LTS : libheif vulnerabilities (USN-8649-1)

high Nessus Plugin ID 365445

Synopsis

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

Description

The remote Ubuntu 24.04 LTS / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8649-1 advisory.

 It was discovered that libheif had an integer underflow in the Fraction constructor when a clap transform was applied twice. An attacker could possibly use this issue to cause libheif to crash, resulting in a denial of service. (CVE-2026-62289)

 It was discovered that libheif had an out-of-bounds read in uncompressed tile range slicing. An attacker could possibly use this issue to cause libheif to crash, resulting in a denial of service. This issue only affected Ubuntu 25.10. (CVE-2026-62292)

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-8649-1

Plugin Details

Severity: High

ID: 365445

File Name: ubuntu_USN-8649-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 10/13/2026

Updated: 10/13/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.72

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2026-62289

CVSS v3

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.8

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

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

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 6.6

Threat Vector: CVSS:4.0/E:U

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:N

CVSS Score Source: CVE-2026-62292

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:24.04:-:lts, cpe:/o:canonical:ubuntu_linux:26.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:heif-gdk-pixbuf, p-cpe:/a:canonical:ubuntu_linux:heif-thumbnailer, p-cpe:/a:canonical:ubuntu_linux:heif-view, p-cpe:/a:canonical:ubuntu_linux:libheif-examples, p-cpe:/a:canonical:ubuntu_linux:libheif-plugin-aomdec, p-cpe:/a:canonical:ubuntu_linux:libheif-plugin-aomenc, p-cpe:/a:canonical:ubuntu_linux:libheif-plugin-dav1d, p-cpe:/a:canonical:ubuntu_linux:libheif-plugin-ffmpegdec, p-cpe:/a:canonical:ubuntu_linux:libheif-plugin-j2kdec, p-cpe:/a:canonical:ubuntu_linux:libheif-plugin-j2kenc, p-cpe:/a:canonical:ubuntu_linux:libheif-plugin-jpegdec, p-cpe:/a:canonical:ubuntu_linux:libheif-plugin-jpegenc, p-cpe:/a:canonical:ubuntu_linux:libheif-plugin-kvazaar, p-cpe:/a:canonical:ubuntu_linux:libheif-plugin-libde265, p-cpe:/a:canonical:ubuntu_linux:libheif-plugin-rav1e, p-cpe:/a:canonical:ubuntu_linux:libheif-plugin-svtenc, p-cpe:/a:canonical:ubuntu_linux:libheif-plugin-x265, p-cpe:/a:canonical:ubuntu_linux:libheif-plugins-all, p-cpe:/a:canonical:ubuntu_linux:libheif1

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/19/2026

Vulnerability Publication Date: 6/18/2026

Reference Information

CVE: CVE-2026-62289, CVE-2026-62292

IAVB: 2026-B-0158-S

USN: 8649-1