SB2026051491 - Red Hat Enterprise Linux 9 update for openexr

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2026051491

SB2026051491 - Red Hat Enterprise Linux 9 update for openexr

Published: May 14, 2026

Security Bulletin ID SB2026051491
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Integer overflow (CVE-ID: CVE-2026-34588)

CWE-ID: CWE-190 - Integer overflow

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote attacker to read and write out-of-bounds memory.

The vulnerability exists due to integer overflow in internal_exr_undo_piz() in the PIZ decoder when parsing a crafted EXR file. A remote attacker can supply a specially crafted EXR file to read and write out-of-bounds memory.

The issue occurs during PIZ decompression because signed 32-bit arithmetic can wrap while advancing the working wavelet pointer, causing the next channel to decode from an incorrect address.


Remediation

Install update from vendor's website.

References