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verify corrupted SpcPeImageData struct

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olszomal 2022-02-22 11:35:08 +01:00 committed by Michał Trojnara
parent 5db237f242
commit f248286d6f
1 changed files with 6 additions and 1 deletions
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7
osslsigncode.c
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@ -3278,8 +3278,13 @@ static int pe_extract_page_hash(SpcAttributeTypeAndOptionalValue *obj,
return 0; /* FAILED */ return 0; /* FAILED */
blob = obj->value->value.sequence->data; blob = obj->value->value.sequence->data;
id = d2i_SpcPeImageData(NULL, &blob, obj->value->value.sequence->length); id = d2i_SpcPeImageData(NULL, &blob, obj->value->value.sequence->length);
if (id == NULL) if (!id) {
return 0; /* FAILED */ return 0; /* FAILED */
}
if (!id->file) {
SpcPeImageData_free(id);
return 0; /* FAILED */
}
if (id->file->type != 1) { if (id->file->type != 1) {
SpcPeImageData_free(id); SpcPeImageData_free(id);
return 1; /* OK - this is not SpcSerializedObject structure that contains page hashes */ return 1; /* OK - this is not SpcSerializedObject structure that contains page hashes */