CVE-2023-2804

Name: CVE-2023-2804
Creator: NVD / NIST
Published: 2023-05-25T22:15:09.443+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 1.20%

Last modified Jun 17, 2026

CVE-2023-2804 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. A heap-based buffer overflow issue was discovered in libjpeg-turbo in h2v2_merged_upsample_internal() function of jdmrgext.c file. The vulnerability can only be exploited with 12-bit data precision for which the range of the sample data type exceeds the valid sample range, hence, an attacker could craft a 12-bit lossless JPEG image that contains out-of-range 12-bit samples. EPSS estimates a 1.20% chance of exploitation in the next 30 days.

Description

A heap-based buffer overflow issue was discovered in libjpeg-turbo in h2v2_merged_upsample_internal() function of jdmrgext.c file. The vulnerability can only be exploited with 12-bit data precision for which the range of the sample data type exceeds the valid sample range, hence, an attacker could craft a 12-bit lossless JPEG image that contains out-of-range 12-bit samples. An application attempting to decompress such image using merged upsampling would lead to segmentation fault or buffer overflows, causing an application to crash.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS Probability

1.20%

64.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Libjpeg-Turbo	Libjpeg-Turbo	2.1.90

References

https://access.redhat.com/security/cve/CVE-2023-2804Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2208447Issue Tracking, Patch
https://github.com/libjpeg-turbo/libjpeg-turbo/commit/9f756bc67a84d4566bf74a0c2432aa55da404021Patch
https://github.com/libjpeg-turbo/libjpeg-turbo/issues/668#issuecomment-1492586118Exploit, Issue Tracking, Patch
https://github.com/libjpeg-turbo/libjpeg-turbo/issues/675Exploit, Issue Tracking, Patch
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01006.html
https://access.redhat.com/security/cve/CVE-2023-2804Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2208447Issue Tracking, Patch
https://github.com/libjpeg-turbo/libjpeg-turbo/commit/9f756bc67a84d4566bf74a0c2432aa55da404021Patch
https://github.com/libjpeg-turbo/libjpeg-turbo/issues/668#issuecomment-1492586118Exploit, Issue Tracking, Patch
https://github.com/libjpeg-turbo/libjpeg-turbo/issues/675Exploit, Issue Tracking, Patch
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01006.html

Timeline

Published: May 25, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-2804?

How severe is CVE-2023-2804?

CVE-2023-2804 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.20% probability of exploitation in the next 30 days.

How do I fix CVE-2023-2804?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-2804?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST