CVE-2018-20178
First published: Fri Mar 15 2019(Updated: )
rdesktop versions up to and including v1.8.3 contain an Out-Of-Bounds Read in the function process_demand_active() that results in a Denial of Service (segfault).
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-2018-20178
- 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-2018-20178?
CVE-2018-20178 is classified as a Denial of Service vulnerability due to an Out-Of-Bounds Read that can lead to a segfault.
How do I fix CVE-2018-20178?
To fix CVE-2018-20178, update rdesktop to version 1.8.6-2 or 1.9.0-2 or later.
Which versions of rdesktop are affected by CVE-2018-20178?
CVE-2018-20178 affects rdesktop versions up to and including 1.8.3.
What is the impact of CVE-2018-20178?
The impact of CVE-2018-20178 is a Denial of Service, where the service can crash due to a segfault.
Is CVE-2018-20178 specific to any operating systems?
CVE-2018-20178 specifically affects Debian Linux versions 8.0 and 9.0 when using vulnerable rdesktop versions.
- collector/security-tracker-debian
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- collector/mitre-cve
- source/MITRE
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- agent/last-modified-date
- agent/author
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- agent/description
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- agent/event
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- agent/softwarecombine
- agent/tags
- 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