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Echo: libheif: security update to 1.19.8-1+e6

medium Tenable Cloud Security Plugin ID 459246

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - libheif is a HEIF and AVIF file format decoder and encoder. The fix for CVE-2026-3949 (commit `b97c8b5`,
 PR #1712) introduced an integer overflow in the very security check it added. The check itself can be
 bypassed, allowing a crafted HEIF file with a VVC track to trigger the same out-of-bounds heap read that
 CVE-2026-3949 was meant to prevent. This is a separate, currently-unpatched vulnerability. Issue #1712 was
 closed as fixed without testing the edge case where `size` is near `UINT32_MAX`. Version 1.22.0 patches
 the issue. (CVE-2026-47251)

Solution

Update the libheif library and its related packages to version 1.19.8-1+e6 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-47251

Plugin Details

Severity: Medium

ID: 459246

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3.5

Percentile: 51.87

CVSS v2

Risk Factor: Medium

Base Score: 5.6

Temporal Score: 4.4

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

CVSS Score Source: CVE-2026-47251

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.5

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

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

CVSS v4

Risk Factor: Medium

Base Score: 6.8

Threat Score: 5.2

Threat Vector: CVSS:4.0/E:P

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/2/2026

Vulnerability Publication Date: 7/21/2026

Reference Information

CVE: CVE-2026-47251