CVE-2020-11038 Integer Overflow to Buffer Overflow in FreeRDP
A malicious RDP server can trigger an integer overflow leading to buffer overflow and code execution on the FreeRDP client when video redirection is enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2020-11038?
CVE-2020-11038 is a medium-severity vulnerability in Debian Debian Linux, published on 29 May 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
In FreeRDP less than or equal to 2.0.0, an Integer Overflow to Buffer Overflow exists. When using /video redirection, a manipulated server can instruct the client to allocate a buffer with a smaller size than requested due to an integer overflow in size calculation. With later messages, the server can manipulate the client to write data out of bound to the previously allocated buffer. This has been patched in 2.1.0.
Which versions are affected by CVE-2020-11038?
It affects 3 products.
Products include Debian Debian Linux, Freerdp Freerdp, Opensuse Leap.
How do I fix CVE-2020-11038?
Upgrade to a fixed version.
Is CVE-2020-11038 being exploited?
There is no known exploitation of CVE-2020-11038 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2020-11038, GHSA-h25x-cqr6-fp6g, UBUNTU-CVE-2020-11038.