In Artifex MuPDF 1.13.0, the fz_append_byte function in fitz/buffer.c allows remote attackers to cause a denial of service (segmentation fault) via a crafted pdf file. This is caused by a pdf/pdf-device.c pdf_dev_alpha array-index underflow.
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.0 Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade mupdf | Jul 28, 2020 | Sep 6, 2018 |
| Ubuntu | — | Upgrade mupdf (Ubuntu Pro)Upgrade mupdf-tools (Ubuntu Pro)Upgrade libmupdf-dev (Ubuntu Pro) | Oct 21, 2025 | Oct 16, 2025 |
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