Buffer overflow in Libjpeg-Turbo
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.
Vulnerability class: Buffer Overflow
EPSS: 0.012 (65.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
Affected products
- Libjpeg-turbo — versions 2.1.90
- N/a Libjpeg-turbo — versions Fixed in libjpeg-turbo v3.0 (beta2)
Weakness classification (CWE)
References
- secalert@redhat.com (Exploit, Patch, Issue Tracking)
- secalert@redhat.com (Patch, Issue Tracking)
- secalert@redhat.com (Third Party Advisory)
- secalert@redhat.com (Patch)
- secalert@redhat.com (Exploit, Patch, Issue Tracking)
- secalert@redhat.com
Frequently asked questions
- What is CVE-2023-2804?
- CVE-2023-2804 is a medium-severity vulnerability in Libjpeg-Turbo, classified under Heap-based Buffer Overflow. CVSS score: 6.5/10. Published 2023-05-25.
- How severe is CVE-2023-2804?
- Medium severity. CVSS v3 base score is 6.5 out of 10.