Description
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
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| RDesktop | RDesktop | 1.8.4 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | rdesktop | 1.8.6-1 | — |
| Debian 13 | rdesktop | 1.8.6-1 | — |
| Debian 12 | rdesktop | 1.8.6-1 | — |
| Debian 9 | rdesktop | 1.8.6-2~deb9u1 | DSA-4473-1 |
| Debian 8 | rdesktop | 1.8.6-0+deb8u1 | DLA-1837-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | rdesktop | No fix yet | — |
| Ubuntu 16.04 LTS | rdesktop | No fix yet | — |
Advisories 2
- DSA-4473-1 rdesktop - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1837-1 rdesktop - security update Debian Security (DSA / DLA) · Mar 9, 2026