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Advisories

xlsxio through 0.2.37 NULL Pointer Dereference via Worksheet Relationship Without Id

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Severity
medium
Date
Affecting

  • xlsxio <= 0.2.37

CWE
  • CWE-476 NULL Pointer Dereference
CVSS
6.8
CVSS V4 Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Credit
pedrobtz, HaiND from the Post and Telecommunication Institute of Technology
Description
xlsxio through 0.2.37 contains a NULL pointer dereference vulnerability in main_sheet_get_sheetfile_expat_callback_element_start() in lib/xlsxio_read.c that allows attackers to crash applications via crafted files. Attackers can supply a .xlsx file whose workbook.xml.rels contains a worksheet Relationship lacking an Id attribute, crashing the process when xlsxioread_sheet_open() is called.

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