Multiple signedness errors (mixed signed and unsigned numbers) in the I/O functions of rsync 2.4.6, 2.3.2, and other versions allow remote attackers to cause a denial of service and execute arbitrary code in the rsync client or server.

Heap-based buffer overflow in rsync before 2.5.7, when running in server mode, allows remote attackers to execute arbitrary code and possibly escape the chroot jail.

Directory traversal vulnerability in the sanitizepath function in util.c for rsync 2.6.2 and earlier, when chroot is disabled, allows attackers to read or write certain files.

The rsync command before rsync 2.3.1 may inadvertently change the permissions of the client's working directory to the permissions of the directory being transferred.