Open-source ARJ archiver 3.10.22 does not properly remove leading slashes from paths, which allows remote attackers to conduct absolute path traversal attacks and write to arbitrary files via multiple leading slashes in a path in an ARJ archive.
Directory traversal vulnerability in the -x (extract) command line option in unarj allows remote attackers to overwrite arbitrary files via an arj archive with filenames that contain .. (dot dot) sequences.
Buffer overflow in Open-source ARJ archiver 3.10.22 allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a crafted ARJ archive.