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Advisories

libmspack through 0.11alpha Uninitialized Pointer Free via kwajd_open Error Path

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Severity
medium
Date
Affecting

  • libmspack <= 0.11alpha

CWE
  • CWE-824 Access of Uninitialized Pointer
CVSS
5.8
CVSS V4 Vector
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
HaiND from the Post and Telecommunication Institute of Technology
Description
libmspack through 0.11alpha contains an uninitialized pointer free vulnerability in kwajd_open() in mspack/kwajd.c that frees unzeroed filename and extra pointers on header read errors. Attackers can supply a truncated, empty, or wrong-signature KWAJ file to crash the process or obtain an arbitrary-free memory corruption primitive.

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