Detections
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Echo: openexr: security update to 3.1.13-2

high Tenable Cloud Security Plugin ID 465190

Description

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

 - OpenEXR provides the specification and reference implementation of the EXR file format, an image storage
 format for the motion picture industry. From 3.2.0 to before 3.2.7, 3.3.9, and 3.4.9, a misaligned memory
 write vulnerability exists in LossyDctDecoder_execute() in src/lib/OpenEXRCore/internal_dwa_decoder.h:749.
 When decoding a DWA or DWAB-compressed EXR file containing a FLOAT-type channel, the decoder performs an
 in-place HALF→FLOAT conversion by casting an unaligned uint8_t * row pointer to float * and writing
 through it. Because the row buffer may not be 4-byte aligned, this constitutes undefined behavior under
 the C standard and crashes immediately on architectures that enforce alignment (ARM, RISC-V, etc.). On x86
 it is silently tolerated at runtime but remains exploitable via compiler optimizations that assume aligned
 access. This vulnerability is fixed in 3.2.7, 3.3.9, and 3.4.9. (CVE-2026-34379)

Solution

Update the openexr library and its related packages to version 3.1.13-2 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-34379

Plugin Details

Severity: High

ID: 465190

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3.5

Percentile: 51.77

CVSS v2

Risk Factor: High

Base Score: 8.5

Temporal Score: 6.7

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

CVSS Score Source: CVE-2026-34379

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.4

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/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: 6/1/2026

Vulnerability Publication Date: 4/2/2026

Reference Information

CVE: CVE-2026-34379

IAVA: 2026-A-0295-S