CVE-2020-11521: Integer Overflow
First published: Fri May 15 2020(Updated: )
Last updated 24 July 2024
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/freerdp2 | 2.3.0+dfsg1-2+deb11u1 2.10.0+dfsg1-1 | |
| FreeRDP | >1.0.0<2.0.0 | |
| FreeRDP | =2.0.0 | |
| FreeRDP | =2.0.0-rc0 | |
| FreeRDP | =2.0.0-rc1 | |
| FreeRDP | =2.0.0-rc2 | |
| FreeRDP | =2.0.0-rc3 | |
| FreeRDP | =2.0.0-rc4 | |
| Ubuntu Linux | =16.04 | |
| Ubuntu Linux | =18.04 | |
| Ubuntu Linux | =19.10 | |
| Ubuntu Linux | =20.04 | |
| openSUSE | =15.1 | |
| Debian GNU/Linux | =9.0 | |
| Ubuntu | =16.04 | |
| Ubuntu | =18.04 | |
| Ubuntu | =19.10 | |
| Ubuntu | =20.04 | |
| Debian | =9.0 |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00080.html
- https://github.com/FreeRDP/FreeRDP/commits/master
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-5cwc-6wc9-255w
- https://lists.debian.org/debian-lts-announce/2020/08/msg00054.html
- https://pub.freerdp.com/cve/CVE-2020-11521/pocAnalysis_6.pdf
- https://usn.ubuntu.com/4379-1/
- https://usn.ubuntu.com/4382-1/
- https://launchpad.net/bugs/cve/CVE-2020-11521
- https://github.com/FreeRDP/FreeRDP/commit/17f547ae11835bb11baa3d045245dc1694866845
- https://security-tracker.debian.org/tracker/CVE-2020-11521
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11521
- https://nvd.nist.gov/vuln/detail/CVE-2020-11521
- https://ubuntu.com/security/CVE-2020-11521
Frequently Asked Questions
What is the severity of CVE-2020-11521?
CVE-2020-11521 is classified as a high-severity vulnerability due to its potential for out-of-bounds writes which could lead to arbitrary code execution.
How do I fix CVE-2020-11521?
To fix CVE-2020-11521, you should upgrade FreeRDP to version 2.3.0+dfsg1-2+deb11u1 or later.
Which versions of FreeRDP are affected by CVE-2020-11521?
FreeRDP versions greater than 1.0 and up to 2.0.0-rc4 are affected by CVE-2020-11521.
What type of vulnerability is CVE-2020-11521?
CVE-2020-11521 is an out-of-bounds write vulnerability that may allow attackers to execute arbitrary code.
Is CVE-2020-11521 present in Debian systems?
Yes, CVE-2020-11521 can be present in Debian systems running vulnerable versions of FreeRDP.
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