CVE-2018-20181: Buffer Overflow
First published: Fri Mar 15 2019(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/rdesktop | 1.8.6-2 1.9.0-2 | |
| Ubuntu Desktop File Utils | <=1.8.3 | |
| Debian Linux | =8.0 | |
| Debian Linux | =9.0 |
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Reference Links
- https://github.com/rdesktop/rdesktop/commit/766ebcf6f23ccfe8323ac10242ae6e127d4505d2
- https://security-tracker.debian.org/tracker/CVE-2018-20181
- 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
Frequently Asked Questions
What is the severity of CVE-2018-20181?
CVE-2018-20181 is classified as a high severity vulnerability due to its potential for remote code execution.
How do I fix CVE-2018-20181?
To fix CVE-2018-20181, upgrade rdesktop to version 1.8.6-2 or 1.9.0-2.
What versions of rdesktop are affected by CVE-2018-20181?
rdesktop versions up to and including 1.8.3 are affected by CVE-2018-20181.
What does CVE-2018-20181 exploit?
CVE-2018-20181 exploits an Integer Underflow leading to a Heap-Based Buffer Overflow and memory corruption.
Is remote code execution possible with CVE-2018-20181?
Yes, CVE-2018-20181 can result in remote code execution due to the vulnerability present in rdesktop.
- collector/security-tracker-debian
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- collector/mitre-cve
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- agent/event
- agent/source
- agent/softwarecombine
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- collector/nvd-index
- agent/software-canonical-lookup-request
- package-manager/debian
- vendor/rdesktop
- canonical/ubuntu desktop file utils
- version/ubuntu desktop file utils/1.8.3
- vendor/debian
- canonical/debian linux
- version/debian linux/8.0
- version/debian linux/9.0