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Advisories

LibreCAD libdxfrw through LC2.2.0 Stack Out-of-Bounds Read via dwgReader18::readFileHeader

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Severity
medium
Date
Affecting

  • libdxfrw <= LC2.2.0

  • LibreCAD <= 2.2.1.5

CWE
  • CWE-125 Out-of-bounds Read
CVSS
4.8
CVSS V4 Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Credit
dayzsec, HaiND from the Post and Telecommunication Institute of Technology
Description
LibreCAD libdxfrw through LC2.2.0 (LibreCAD through 2.2.1.5) contains a stack-based out-of-bounds read vulnerability in dwgReader18::readFileHeader() caused by calling strlen on non-NUL-terminated buffers. Attackers can supply a crafted AC1018, AC1024 or AC1027 DWG file without NUL bytes in the decrypted header to read adjacent stack memory and crash the process.

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