RDesktop version 1.8.4 contains multiple out-of-bound access read vulnerabilities in its code, which results in a denial of service (DoS) condition. This attack appear to be exploitable via network connectivity. These issues have been fixed in version 1.8.5

rdesktop versions up to and including v1.8.3 contain an Out-Of-Bounds Read in the function processdemandactive() that results in a Denial of Service (segfault).

rdesktop versions up to and including v1.8.3 contain an Integer Overflow that leads to a Heap-Based Buffer Overflow in the function rdpinunistr() and results in memory corruption and possibly even a remote code execution.

rdesktop versions up to and including v1.8.3 contain an Integer Underflow that leads to a Heap-Based Buffer Overflow in the function lspciprocess() and results in memory corruption and probably even a remote code execution.

rdesktop versions up to and including v1.8.3 contain an Integer Underflow that leads to a Heap-Based Buffer Overflow in the function rdpsnddbgprocess() and results in memory corruption and probably even a remote code execution.

rdesktop versions up to and including v1.8.3 contain an Integer Underflow that leads to a Heap-Based Buffer Overflow in the function seamlessprocess() and results in memory corruption and probably even a remote code execution.

rdesktop versions up to and including v1.8.3 contains several Integer Signedness errors that lead to Out-Of-Bounds Reads in the file mcs.c and result in a Denial of Service (segfault).

rdesktop versions up to and including v1.8.3 contain a Buffer Overflow over the global variables in the function seamlessprocessline() that results in memory corruption and probably even a remote code execution.

rdesktop versions up to and including v1.8.3 contain several Out-Of- Bounds Reads in the file secure.c that result in a Denial of Service (segfault).

rdesktop versions up to and including v1.8.3 contain an Out-Of-Bounds Read in the function uicliphandledata() that results in an information leak.

rdesktop versions up to and including v1.8.3 contain a Heap-Based Buffer Overflow in function uicliphandledata() that results in a memory corruption and probably even a remote code execution.

rdesktop versions up to and including v1.8.3 contain a Heap-Based Buffer Overflow in function processplane() that results in a memory corruption and probably even a remote code execution.

rdesktop versions up to and including v1.8.3 contain an Integer Overflow that leads to a Heap-Based Buffer Overflow in function processbitmapupdates() and results in a memory corruption and probably even a remote code execution.

rdesktop versions up to and including v1.8.3 contain an Out-Of-Bounds Read in function processbitmapupdates() that results in a Denial of Service (segfault).

rdesktop versions up to and including v1.8.3 contain an Out-Of-Bounds Read in function rdpsndprocessping() that results in an information leak.

rdesktop versions up to and including v1.8.3 contain an Out-Of-Bounds Read in function processsecondaryorder() that results in a Denial of Service (segfault).

rdesktop versions up to and including v1.8.3 contain an Out-Of-Bounds Read in function rdpdrprocess() that results in an information leak.

rdesktop versions up to and including v1.8.3 contain a Heap-Based Buffer Overflow in function csspreadtsrequest() that results in a memory corruption and probably even a remote code execution.

rdesktop versions up to and including v1.8.3 contain an Out-Of-Bounds Read in function csspreadtsrequest() that results in a Denial of Service (segfault).

rdesktop versions up to and including v1.8.3 contain an Integer Overflow that leads to an Out-Of-Bounds Write in function processbitmapupdates() and results in a memory corruption and possibly even a remote code execution.

Directory traversal vulnerability in the diskcreate function in disk.c in rdesktop before 1.7.0, when disk redirection is enabled, allows remote RDP servers to read or overwrite arbitrary files via a .. (dot dot) in a pathname.

Integer signedness error in the xrealloc function (rdesktop.c) in RDesktop 1.5.0 allows remote attackers to execute arbitrary code via unknown parameters that trigger a heap-based overflow. NOTE: the role of the channelprocess function was not specified by the original researcher.

Integer underflow in the isorecvmsg function (iso.c) in rdesktop 1.5.0 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a Remote Desktop Protocol (RDP) request with a small length field.

Buffer overflow in the processredirectpdu (rdp.c) function in rdesktop 1.5.0 allows remote attackers to execute arbitrary code via a Remote Desktop Protocol (RDP) redirect request with modified length fields.