CVE-2023-2804

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.

Affected

libjpeg-turbo

CVSS v3.1 NVD

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

EPSS

1.20% chance of exploitation in the next 30 days, 68th percentile

Published

2023-05-25

Updated

2025-01-16

Proof-of-concept exploits (1)

• libjpeg-turbo/libjpeg-turbo/issues/6754446★ · 2026-10-13

Security advisories

• https://access.redhat.com/security/cve/CVE-2023-2804
• https://bugzilla.redhat.com/show_bug.cgi?id=2208447

References

• CVE Record
• NVD entry

Related

• CVE-2017-9614
• CVE-2018-14498
• CVE-2020-14153
• CVE-2020-17541