medium6.5
CVE-2026-112277
rdesktop through 1.9.0 contains a heap out-of-bounds read vulnerability in process_plane() in bitmap.c that allows malicious RDP servers to crash clients by se…
Impact
rdesktop through 1.9.0 contains a heap out-of-bounds read vulnerability in process_plane() in bitmap.c that allows malicious RDP servers to crash clients by sending malformed 32 bpp compressed bitmaps. Attackers can declare a large bitmap geometry with a short compressed body in bitmap update PDUs or bitmap cache orders, causing unbounded reads past the receive buffer and denial of service.
Affected products
| Product | Affected versions |
|---|---|
| Rdesktop | through 1.9.0 |
Versions were read from the advisory text. No structured product data has been published for this record yet.
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/rdesktop/rdesktop/blob/v1.9.0/bitmap.c
- https://github.com/rdesktop/rdesktop/issues/436
- https://github.com/rdesktop/rdesktop/pull/437
- https://hackmd.io/@haindpwn/rdesktop-bitmap-decompress-oob-read
- https://www.vulncheck.com/advisories/rdesktop-through-1.9.0-heap-out-of-bounds-read-via-process-plane