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.

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.

rsync before 2.6.1 does not properly sanitize paths when running a read/write daemon without using chroot, which allows remote attackers to write files outside of the module's path.

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

Integer overflow in the receive_xattr function in the extended attributes patch (xattr.c) for rsync before 2.6.8 might allow attackers to execute arbitrary code via crafted extended attributes that trigger a buffer overflow.