Integer signedness error in the Quantum decompressor in cabextract before 1.3, when archive test mode is used, allows user-assisted remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted Quantum archive in a .cab file, related to the libmspack library.

The MS-ZIP decompressor in cabextract before 1.3 allows remote attackers to cause a denial of service (infinite loop) via a malformed MSZIP archive in a .cab file during a (1) test or (2) extract action, related to the libmspack library.