Ghostscript before 10.08.0 contains a heap-based buffer overflow vulnerability in the JPEG 2000 output adapter (base/sjpx_openjpeg.c) that allows attackers to cause memory corruption by supplying a crafted PDF containing a JPEG 2000 image with mismatched component subsampling factors. When image components declare different subsampling values, the non-samescale sub-byte-depth output path allocates a row buffer sized for packed output but writes a full byte per output column regardless of bit depth, overflowing the allocation and corrupting internal chunk-allocator metadata to achieve code execution.
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Affected Vendors & Products
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History
Thu, 01 Oct 2026 15:30:00 +0000
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Artifex
Artifex ghostscript |
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| CPEs | cpe:2.3:a:artifex:ghostscript:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Artifex
Artifex ghostscript |
Mon, 21 Sep 2026 12:15:00 +0000
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threat_severity
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threat_severity
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Sun, 20 Sep 2026 01:30:00 +0000
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ssvc
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Tue, 15 Sep 2026 14:45:00 +0000
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| Description | Ghostscript before 10.08.0 contains a heap-based buffer overflow vulnerability in the JPEG 2000 output adapter (base/sjpx_openjpeg.c) that allows attackers to cause memory corruption by supplying a crafted PDF containing a JPEG 2000 image with mismatched component subsampling factors. When image components declare different subsampling values, the non-samescale sub-byte-depth output path allocates a row buffer sized for packed output but writes a full byte per output column regardless of bit depth, overflowing the allocation and corrupting internal chunk-allocator metadata to achieve code execution. | |
| Title | Ghostscript < 10.08.0 Heap Buffer Overflow via JPEG 2000 Output Adapter | |
| Weaknesses | CWE-122 | |
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cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-09-15T14:26:06.697Z
Updated: 2026-10-01T15:19:56.598Z
Reserved: 2026-04-07T20:57:06.209Z
Link: CVE-2026-39919
Updated: 2026-09-20T00:30:39.384Z
Status : Awaiting Analysis
Published: 2026-09-15T15:17:14.723
Modified: 2026-09-24T21:04:40.340
Link: CVE-2026-39919