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Fencer Vulns
high 7.1

CVE-2021-29390 json

libjpeg-turbo version 2.0.90 has a heap-based buffer over-read (2 bytes) in decompress_smooth_data in jdcoefct.c.

published 2023-08-22 3 y ago modified 2026-06-17 4 mo ago also EUVD-2021-16025

cvss
7.1
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 57%
public exploits
0
none known

Summary

libjpeg-turbo version 2.0.90 has a heap-based buffer over-read (2 bytes) in decompress_smooth_data in jdcoefct.c.

Patch / fix

  • libjpeg-turbo RHEL 9 2.0.90-7.el9
  • turbojpeg RHEL 9 2.0.90-7.el9
  • libjpeg-turbo-utils RHEL 9 2.0.90-7.el9

red hat advisories RHSA-2024:2295

  • libjpeg-turbo AlmaLinux 9 2.0.90-7.el9
  • turbojpeg AlmaLinux 9 2.0.90-7.el9
  • libjpeg-turbo-utils AlmaLinux 9 2.0.90-7.el9

almalinux advisories ALSA-2024:2295

  • libjpeg-turbo Rocky Linux 9 2.0.90-7.el9

rocky linux advisories RLSA-2024:2295

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-2021-29390 updated cvss 7.1

libjpeg-turbo: heap-buffer-overflow vulnerability in decompress_smooth_data in jdcoefct.c

  • Red Hat Enterprise Linux 6 libjpeg-turbo Red Hat Enterprise Linux 7 turbojpeg, libjpeg-turbo, libjpeg-turbo-utils
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux AppStream (v. 9) libjpeg-turbo 2.0.90-7.el9, libjpeg-turbo-utils 2.0.90-7.el9 Red Hat Enterprise Linux CRB (v. 9) turbojpeg 2.0.90-7.el9
    fixed: vendor fix RHSA-2024:2295
  • Red Hat Enterprise Linux 8 turbojpeg, libjpeg-turbo, libjpeg-turbo-utils
    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
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.82% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

Classification

Weakness

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.