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CVE-2020-11038

Published: 29 May 2020

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.

Priority

Medium

Cvss 3 Severity Score

5.4

Score breakdown

Status

Package Release Status
freerdp
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code not present)
eoan Does not exist

focal Does not exist

trusty Does not exist

upstream Needs triage

xenial Not vulnerable
(code not present)
freerdp2
Launchpad, Ubuntu, Debian
bionic
Released (2.1.1+dfsg1-0ubuntu0.18.04.1)
eoan
Released (2.1.1+dfsg1-0ubuntu0.19.10.1)
focal
Released (2.1.1+dfsg1-0ubuntu0.20.04.1)
trusty Does not exist

upstream
Released (2.1.1+dfsg1-1)
xenial Does not exist

Patches:
upstream: https://github.com/FreeRDP/FreeRDP/commit/06c32f170093a6ecde93e3bc07fed6a706bfbeb3

Severity score breakdown

Parameter Value
Base score 5.4
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact Low
Availability impact Low
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L