An issue was discovered in mspack/chmd.c in libmspack before 0.7alpha. There is an off-by-one error in the CHM PMGI/PMGL chunk number validity checks, which could lead to denial of service (uninitialized data dereference and application crash).
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{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "0.6-3ubuntu0.1", "binary_name": "libmspack-dev" }, { "binary_version": "0.6-3ubuntu0.1", "binary_name": "libmspack-doc" }, { "binary_version": "0.6-3ubuntu0.1", "binary_name": "libmspack0" }, { "binary_version": "0.6-3ubuntu0.1", "binary_name": "libmspack0-dbgsym" } ] }