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Echo: libheif: security update to 1.19.8-1+e9

medium Tenable Cloud Security Plugin ID 460873

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. From 1.19.0 until 1.23.3, the no-icef full-
 item branch of unc_decoder::get_compressed_image_data_uncompressed() in
 libheif/codecs/uncompressed/unc_decoder.cc retains an addition-based range check that can wrap when a
 crafted uncompressed tile grid produces a large range_start_offset and range_size. The overflow makes the
 bounds comparison pass and allows heif_image_handle_decode_image_tile() to call memcpy() with an invalid
 source pointer and a very large length when decoding a valid high-index advertised tile. This incomplete
 remediation of CVE-2026-62292 can reliably crash tile-processing applications, while whole-image decoding
 is not claimed to reach the demonstrated path. This issue is fixed in version 1.23.3. (CVE-2026-84451)

Solution

Update the libheif library and its related packages to version 1.19.8-1+e9 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-84451

Plugin Details

Severity: Medium

ID: 460873

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.61

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-84451

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 9/4/2026

Vulnerability Publication Date: 9/18/2026

Reference Information

CVE: CVE-2026-84451