CVE-2018-8784: Buffer Overflow
First published: Thu Nov 29 2018(Updated: )
FreeRDP prior to version 2.0.0-rc4 contains a Heap-Based Buffer Overflow in function zgfx_decompress_segment() that results in a memory corruption and probably even a remote code execution.
Credit: cve@checkpoint.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| FreeRDP | <=1.2.0 | |
| FreeRDP | =2.0.0-rc1 | |
| FreeRDP | =2.0.0-rc2 | |
| FreeRDP | =2.0.0-rc3 | |
| Ubuntu Linux | =18.04 | |
| Ubuntu Linux | =18.10 | |
| Ubuntu | =18.04 | |
| Ubuntu | =18.10 | |
| debian/freerdp2 | 2.3.0+dfsg1-2+deb11u1 2.3.0+dfsg1-2+deb11u2 2.10.0+dfsg1-1 |
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Reference Links
- http://www.securityfocus.com/bid/106938
- https://github.com/FreeRDP/FreeRDP/commit/17c363a5162fd4dc77b1df54e48d7bd9bf6b3be7
- https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients/
- https://usn.ubuntu.com/3845-1/
- https://launchpad.net/bugs/cve/CVE-2018-8784
- https://security-tracker.debian.org/tracker/CVE-2018-8784
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-8784
- https://nvd.nist.gov/vuln/detail/CVE-2018-8784
- https://ubuntu.com/security/CVE-2018-8784
Frequently Asked Questions
What is the severity of CVE-2018-8784?
CVE-2018-8784 has a high severity rating due to its potential for remote code execution.
How do I fix CVE-2018-8784?
To fix CVE-2018-8784, upgrade FreeRDP to version 2.0.0-rc4 or later.
What versions of FreeRDP are affected by CVE-2018-8784?
CVE-2018-8784 affects FreeRDP versions prior to 2.0.0-rc4.
What types of attacks can exploit CVE-2018-8784?
CVE-2018-8784 can be exploited via heap-based buffer overflow leading to memory corruption and potential remote code execution.
Is CVE-2018-8784 present in Ubuntu distributions?
Yes, CVE-2018-8784 can affect FreeRDP installations on certain versions of Ubuntu, particularly those using affected FreeRDP versions.
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