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Advisories

LibreCAD through 2.2.1.6 Heap Out-of-Bounds Write via dwgReader18::parseDataPage

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Severity
high
Date
Affecting

  • LibreCAD <= 2.2.1.6

CWE
  • CWE-787 Out-of-bounds Write
CVSS
8.5
CVSS V4 Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
Lee Keon-Hyeong, Park-Jung-Hyun, dxli
Description
LibreCAD through 2.2.1.6 contains a heap-based out-of-bounds write vulnerability in the bundled libdxfrw dwgReader18::parseDataPage() function due to unchecked buffer size and page offsets. Attackers can craft an AC1018 (R2004) DWG file with malicious startOffset values that cause decompress18 to write past the heap buffer when opened, causing crashes and potential code execution.

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