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Fencer Vulns
medium 4.3

CVE-2023-39327 json

Openjpeg: malicious files can cause the program to enter a large loop

published 2024-07-13 2 y ago modified 2026-11-07 2 d ago also EUVD-2023-43058 , JLSEC-2026-548

cvss
4.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 46%
public exploits
0
none known

Summary

A flaw was found in OpenJPEG. Maliciously constructed pictures can cause the program to enter a large loop and continuously print warning messages on the terminal.

Patch / fix

  • julia OpenJpeg_jll 2.5.2+0
  • Red Hat Red Hat AI Inference Server 3.2 1772713830
  • openjpeg2 Ubuntu 20.04 LTS 2.3.1-1ubuntu4.20.04.2
  • openjpeg2 Ubuntu 22.04 LTS 2.4.0-6ubuntu0.1
  • openjpeg2 Ubuntu 24.04 LTS 2.5.0-2ubuntu0.1
  • openjpeg2 Ubuntu Pro 16.04 LTS 2.1.2-1.1+deb9u6ubuntu0.1~esm4
  • openjpeg2 Ubuntu Pro 18.04 LTS 2.3.0-2+deb10u2ubuntu0.1~esm2
  • ghostscript Ubuntu Pro 16.04 LTS 9.26~dfsg+0-0ubuntu0.16.04.14+esm9
  • ghostscript Ubuntu Pro 18.04 LTS 9.26~dfsg+0-0ubuntu0.18.04.18+esm4

ubuntu advisories UBUNTU-CVE-2023-39327

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • openjpeg2 SLES for SAP applications 16.0, SLES 16.0 2.5.3-160000.3.1
  • openjpeg2 SLE Module for Package Hub 15 SP7, SLE Module for Basesystem 15 SP7, openSUSE Leap 15.6 2.3.0-150000.3.24.1
  • openjpeg SLE Module for Desktop Applications 15 SP7, SLE Module for Desktop Applications 15 SP6, openSUSE Leap 15.6 1.5.2-150000.4.15.1
  • openjpeg2 SLES LTSS Extended Security 12 SP5 2.1.0-4.27.1

suse advisories SUSE-SU-2026:20422-1SUSE-SU-2026:0330-1SUSE-SU-2026:0320-1SUSE-SU-2025:3946-1

  • openjpeg2 openSUSE Leap 16.0 2.5.3-160000.3.1
  • openjpeg2 openSUSE Tumbleweed 2.5.4-2.1

opensuse advisories openSUSE-SU-2026:20203-1openSUSE-SU-2026:10095-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-39327 updated cvss 4.3

openjpeg: Malicious files can cause the program to enter a large loop

  • Red Hat Enterprise Linux 6 openjpeg, openjpeg-libs Red Hat Enterprise Linux 7 openjpeg, openjpeg2, openjpeg-libs, openjpeg2-tools
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 8 openjpeg2, openjpeg2-tools Red Hat Enterprise Linux 9 openjpeg2, openjpeg2-tools
    affected: no fix available “Fix deferred”
  • Red Hat AI Inference Server 3.2 rhaiis 1772713830
    fixed: vendor fix RHSA-2026:4128

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.56% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
OSV 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Affected packages

ecosystem package affected fixed in
julia OpenJpeg_jll
>=2.5.0+0, <2.5.2+0
2.5.2+0

Affected products

  • Red Hat Red Hat AI Inference Server 3.2
  • Red Hat Red Hat Enterprise Linux 6
  • Red Hat Red Hat Enterprise Linux 7
  • Red Hat Red Hat Enterprise Linux 8
  • Red Hat Red Hat Enterprise Linux 9

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.