GHSA-f67q-4w46-jr64HighCVSS 6.5
rdesktop through 1.9.0 contains a heap out-of-bounds read vulnerability in process_raw_bmpcache()...
🔗 CVE IDs covered (1)
📋 Description
rdesktop through 1.9.0 contains a heap out-of-bounds read vulnerability in process_raw_bmpcache() in orders.c that allows malicious RDP servers to crash clients. Attackers can send a raw bitmap cache order declaring large width, height, and bpp values with a tiny payload, causing memcpy() to read past the receive buffer and crash the client.
🔗 References (7)
- https://nvd.nist.gov/vuln/detail/CVE-2026-112278
- https://github.com/rdesktop/rdesktop/pull/437
- https://github.com/rdesktop/rdesktop/blob/v1.9.0/orders.c
- 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-raw-bmpcache
- https://hackmd.io/@haindpwn/cve-2026-112277-112278-112279-rdesktop-bitmap-decompress-oob-read
- https://github.com/advisories/GHSA-f67q-4w46-jr64