CVE-2018-20181
9.8
CRITICAL · CVSS 3.0 · EPSS 8.2% (pctl 95)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
rdesktop versions up to and including v1.8.3 contain an Integer Underflow that leads to a Heap-Based Buffer Overflow in the function seamless_process() and results in memory corruption and probably even a remote code execution.
Scoring
| CVSS | 9.8 (CRITICAL, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 8.21% — more likely to be exploited than 95% of all CVEs |
| Weakness | CWE-191 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2019-03-15 |
| Last modified | 2026-06-17 |
Affected (2)
| Vendor | Product |
|---|---|
| debian | debian linux |
| rdesktop | rdesktop |
References
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00040.html
- http://www.securityfocus.com/bid/106938
- https://github.com/rdesktop/rdesktop/commit/4dca546d04321a610c1835010b5dad85163b65e1
- https://lists.debian.org/debian-lts-announce/2019/02/msg00030.html
- https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients/
- https://security.gentoo.org/glsa/201903-06
- https://www.debian.org/security/2019/dsa-4394
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00040.html
- http://www.securityfocus.com/bid/106938
- https://github.com/rdesktop/rdesktop/commit/4dca546d04321a610c1835010b5dad85163b65e1
- https://lists.debian.org/debian-lts-announce/2019/02/msg00030.html
- https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients/
- https://security.gentoo.org/glsa/201903-06
- https://www.debian.org/security/2019/dsa-4394
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