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In Artifex Ghostscript through 10.05.1, ocr_begin_page in devices/gdevpdfocr.c has an integer overflow that leads to a heap-based buffer overflow in ocr_line8.

CVE-2025-59800 is a medium severity vulnerability identified in Artifex Ghostscript versions up to 10.05.1. The flaw exists in the function ocr_begin_page within the devices/gdevpdfocr.c source file. Specifically, it is an integer overflow (CWE-190) vulnerability that leads to a heap-based buffer overflow in the ocr_line8 function. The integer overflow occurs when calculations involving page data sizes exceed the maximum value representable by the integer type, causing wraparound. This results in an underestimation of the buffer size needed, leading to a heap buffer overflow when ocr_line8 attempts to process OCR data. The vulnerability does not require privileges or user interaction to exploit, but it requires local access (AV:L) to the system where Ghostscript is installed. The CVSS 3.1 score is 4.3 (medium), reflecting limited impact on confidentiality and availability but some impact on integrity due to potential memory corruption. The scope is changed (S:C), indicating that the vulnerability could affect components beyond the initially vulnerable code. No known exploits are currently in the wild, and no patches have been linked yet. Ghostscript is a widely used interpreter for PostScript and PDF files, often employed in document processing, printing, and conversion workflows. The vulnerability could be triggered by processing maliciously crafted PDF or PostScript files containing OCR data, potentially allowing an attacker to corrupt memory and cause unpredictable behavior or code execution in the context of the Ghostscript process.

Detailed information about CVE-2025-59800: CWE-190 Integer Overflow or Wraparound in Artifex Ghostscript affecting Artifex Ghostscript. Get real-time updates, t

CVE-2025-59800: CWE-190 Integer Overflow or Wraparound in Artifex Ghostscript - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2025-59800: CWE-190 Integer Overflow or Wraparound in Artifex Ghostscript

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