rdesktop versions up to and including v1.8.3 contain a Heap-Based Buffer Overflow in function process_plane() that results in a memory corruption and probably even a remote code execution.
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
The product writes data past the end, or before the beginning, of the intended buffer.
| 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 |
| 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 | mailing list third party advisory vendor advisory |