async-tar PAX extension-header desync enables tar entry/content smuggling

Summary async-tar v0.6.0 mis-applies a buffered PAX size extension to an intermediary extension header a GNU longname L, a GNU longlink K, or a PAX x/g header instead of to the next file entry. POSIX requires a PAX extended-header record set to describe the next file entry, never an intervening...

CVE-2007-3644

archivereadsupportformattar.c in libarchive before 2.2.4 allows user-assisted remote attackers to cause a denial of service infinite loop via 1 an end-of-file condition within a pax extension header or 2 a malformed pax extension header in an a PAX or a b TAR archive...