CVE-2018-8793: Buffer Overflow
First published: Tue Feb 05 2019(Updated: )
rdesktop versions up to and including v1.8.3 contain a Heap-Based Buffer Overflow in function cssp_read_tsrequest() that results in a memory corruption and probably even a remote code execution.
Credit: cve@checkpoint.com
| 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 | =8.0 | |
| Debian | =9.0 | |
| SUSE Linux | =15.1 |
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Reference Links
- https://github.com/rdesktop/rdesktop/commit/766ebcf6f23ccfe8323ac10242ae6e127d4505d2
- https://security-tracker.debian.org/tracker/CVE-2018-8793
- 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-2018-8793?
CVE-2018-8793 is classified as a high severity vulnerability due to the potential for remote code execution.
How do I fix CVE-2018-8793?
To fix CVE-2018-8793, upgrade rdesktop to versions 1.8.6-2 or 1.9.0-2.
Which versions of rdesktop are affected by CVE-2018-8793?
rdesktop versions up to and including 1.8.3 are affected by CVE-2018-8793.
Can CVE-2018-8793 lead to memory corruption?
Yes, CVE-2018-8793 can result in memory corruption due to a heap-based buffer overflow.
Is CVE-2018-8793 specific to any operating system?
CVE-2018-8793 affects multiple operating systems including Debian and openSUSE.
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- vendor/debian
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- version/suse linux/15.1