rdesktop versions up to and including v1.8.3 contain a Buffer Overflow over the global variables in the function seamless_process_line() that results in memory corruption and probably even a remote code execution.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| http://www.securityfocus.com/bid/106938 | vdb entry third party advisory |
| https://github.com/rdesktop/rdesktop/commit/4dca546d04321a610c1835010b5dad85163b65e1 | third party advisory patch |
| https://security.gentoo.org/glsa/201903-06 | third party advisory vendor advisory |
| https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients/ | third party advisory exploit |
| https://www.debian.org/security/2019/dsa-4394 | third party advisory vendor advisory |
| https://lists.debian.org/debian-lts-announce/2019/02/msg00030.html | third party advisory mailing list |
| http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00040.html | vendor advisory |