CVE-2020-11038 Information

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

Reference

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00080.html https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-h25x-cqr6-fp6g

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

LOW

Base Score

LOW

Base Severity

5.4