Amazon Linux 2023 : openexr, openexr-devel, openexr-libs (ALAS2023-2026-1713)

high Nessus Plugin ID 316840

Synopsis

The remote Amazon Linux 2023 host is missing a security update.

Description

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1713 advisory.

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From versions 3.0.0 to before 3.2.9, 3.3.0 to before 3.3.11, and 3.4.0 to before 3.4.11, there is an integer overflow in ImageChannel::resize that leads to heap OOB write via OpenEXRUtil public API. This issue has been patched in versions 3.2.9, 3.3.11, and 3.4.11.

NOTE: https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-m25w-72cj-q6mgNOTE:
https://github.com/AcademySoftwareFoundation/openexr/pull/2367NOTE:
https://github.com/AcademySoftwareFoundation/openexr/commit/0592ee539f33c122c90f09238579b902d838afb4 (CVE-2026-41142)

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From versions 3.0.0 to before 3.2.9, 3.3.0 to before 3.3.11, and 3.4.11, IDManifest::init() reconstructs strings from a prefix-compressed representation. If the previous string is longer than 255 bytes, the next string is expected to begin with a 2-byte prefix length. The code reads stringList[i][0] and stringList[i][1] without checking that the current string has at least two bytes. This issue has been patched in versions 3.2.9, 3.3.11, and 3.4.11.

NOTE: https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-65j8-95g9-jgj4 (CVE-2026-42216)

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From versions 3.0.0 to before 3.2.9, 3.3.0 to before 3.3.11, and 3.4.0 to before 3.4.11, readVariableLengthInteger() decodes a variable-length integer from untrusted EXR input without bounding the shift count. After enough continuation bytes, the code executes a left shift by 70 on a 64-bit value, which is undefined behavior. This issue has been patched in versions 3.2.9, 3.3.11, and 3.4.11.--- From NIST (CVE-2026-42217)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Plugin Details

Severity: High

ID: 316840

File Name: al2023_ALAS2023-2026-1713.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 5/26/2026

Updated: 5/26/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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

CVSS Score Source: CVE-2026-42217

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

CVSS v4

Risk Factor: High

Base Score: 8.8

Threat Score: 7.8

Threat Vector: CVSS:4.0/E:P

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

CVSS Score Source: CVE-2026-42216

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:openexr, p-cpe:/a:amazon:linux:openexr-debuginfo, p-cpe:/a:amazon:linux:openexr-devel, p-cpe:/a:amazon:linux:openexr-libs, p-cpe:/a:amazon:linux:openexr-debugsource, p-cpe:/a:amazon:linux:openexr-libs-debuginfo, cpe:/o:amazon:linux:2023

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/25/2026

Vulnerability Publication Date: 4/29/2026

Reference Information

CVE: CVE-2026-41142, CVE-2026-42216, CVE-2026-42217

IAVA: 2026-A-0416

Detections

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