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Fencer Vulns
high 7.5

CVE-2023-35790 json

An issue was discovered in dec_patch_dictionary.cc in libjxl before 0.8.2.

published 2023-06-16 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-39787

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 55%
public exploits
0
none known

Summary

An issue was discovered in dec_patch_dictionary.cc in libjxl before 0.8.2. An integer underflow in patch decoding can lead to a denial of service, such as an infinite loop.

Patch / fix

  • libjxl_project libjxl 0.8.2
  • jpeg-xl Debian 12 0.7.0-10+deb12u1
  • jpeg-xl Debian 14, Debian 13 0.8.2-4

debian advisories DEBIAN-CVE-2023-35790

  • jpeg-xl Ubuntu 24.04 LTS 0.7.0-10.2ubuntu6.1

ubuntu advisories UBUNTU-CVE-2023-35790

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

  • libjxl Package Hub 15 SP5, openSUSE Leap 15.5 0.8.2-bp155.2.3.1

opensuse advisories openSUSE-SU-2023:0161-1

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-2023-35790 updated cvss 7.5

libjxl: integer underflow leading to infinite loop

  • Red Hat Enterprise Linux 8 firefox, thunderbird Red Hat Enterprise Linux 9 firefox, firefox-x11, thunderbird
    not affected: vulnerable code not present

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
yes
Technical impact
partial
Assessed
22 mo ago

Exploit prediction

0.77% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Classification

Weakness
  • CWE-191 Integer Underflow (Wrap or Wraparound)

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.