Detections
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Echo: libheif: security update to 1.19.8-1

medium Tenable Cloud Security Plugin ID 460662

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. In versions 1.21.2 and below, a crafted
 792-byte HEIF sequence file with samples_per_chunk=0 in the stsc box causes an unsigned integer underflow
 in the Chunk constructor (m_last_sample = 0 + 0 - 1 = UINT32_MAX), mapping all samples to an empty chunk
 and resulting in a denial of service. When any sample is accessed, the library reads from index 0 of an
 empty std::vector, causing a guaranteed SEGV (null-page read). The file parses successfully without
 producing an error; the crash occurs on the first frame access. This issue has been fixed in version
 1.22.0. (CVE-2026-32738)

Solution

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

See Also

https://advisory.echohq.com/cve/CVE-2026-32738

Plugin Details

Severity: Medium

ID: 460662

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.71

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

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

CVSS Score Source: CVE-2026-32738

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.9

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:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/21/2026

Vulnerability Publication Date: 5/19/2026

Reference Information

CVE: CVE-2026-32738

IAVB: 2026-B-0158-S