Vulnerability · Published May 29, 2020 · Assigned by GitHub_M
CVE-2020-11038Integer Overflow to Buffer Overflow in FreeRDP
Medium 6.9
In plain English
A medium-severity security flaw in FreeRDP from FreeRDP. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 69% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | freerdp-devel | 2:2.1.1-1.el8 | ALSA-2020:4647 |
| AlmaLinux:8 | vinagre | 3.22.0-23.el8 | ALSA-2020:4647 |
| Debian:12 | freerdp2 | 2.1.1+dfsg1-1 | DEBIAN-CVE-2020-11038 |
| Rocky Linux:8 | vinagre | 0:3.22.0-23.el8 | RLSA-2020:4647 |
Affected products (as reported)
Weakness: CWE-680 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:H/A:L