CVE-2020-11086
Publication date 29 May 2020
Last updated 18 August 2025
Ubuntu priority
Description
In FreeRDP less than or equal to 2.0.0, there is an out-of-bound read in ntlm_read_ntlm_v2_client_challenge that reads up to 28 bytes out-of-bound to an internal structure. This has been fixed in 2.1.0.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| freerdp | 25.10 questing | Not in release |
| 25.04 plucky | Not in release | |
| 24.04 LTS noble | Not in release | |
| 22.04 LTS jammy | Not in release | |
| 20.04 LTS focal | Not in release | |
| 18.04 LTS bionic |
Vulnerable
|
|
| 16.04 LTS xenial |
Vulnerable
|
|
| 14.04 LTS trusty | Not in release | |
| freerdp2 | 25.10 questing | Not in release |
| 25.04 plucky |
Not affected
|
|
| 24.04 LTS noble |
Not affected
|
|
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal |
Fixed 2.1.1+dfsg1-0ubuntu0.20.04.1
|
|
| 18.04 LTS bionic |
Fixed 2.1.1+dfsg1-0ubuntu0.18.04.1
|
|
| 16.04 LTS xenial | Not in release | |
| 14.04 LTS trusty | Not in release |
Notes
mdeslaur
The freerdp package in Ubuntu 16.04 LTS and Ubuntu 18.04 LTS does not build a server library. This is simply a client denial of service that has a negligible security impact.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
3.1 · Low
|
| Attack vector | Network |
| Attack complexity | High |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | Low |
| Integrity impact | None |
| Availability impact | None |
| Vector | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N |