MediumFix available
libjpeg-turbo — security advisory
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.
- Products
- libjpeg-turbo
- Affected versions
- Not specified
- Fixed versions
- 2.1.5.1-r3, 2.1.5.1-r4
- CVEs
- CVE-2023-2804
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 14:56 UTC · Revision 1
Source evidence
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.
osv:ALPINE-CVE-2023-2804
libjpeg-turbo
Fixed versions: 2.1.5.1-r3
libjpeg-turbo
Fixed versions: 2.1.5.1-r4
libjpeg-turbo
Fixed versions: 2.1.5.1-r4
libjpeg-turbo
Fixed versions: 2.1.5.1-r4
libjpeg-turbo
Fixed versions: 2.1.5.1-r4
libjpeg-turbo
Fixed versions: 2.1.5.1-r4
libjpeg-turbo
Fixed versions: 2.1.5.1-r4
Complete source record
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"modified": "2026-10-26T17:17:58.617122467Z",
"provider": "osv",
"upstream": [
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"references": [
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"source_id": "core-osv",
"document_id": 454411,
"published_at": "2023-05-25T22:15:09.443+00:00"
}