Description
In FreeRDP before version 2.1.2, an out of bounds read occurs resulting in accessing a memory location that is outside of the boundaries of the static array PRIMARY_DRAWING_ORDER_FIELD_BYTES. This is fixed in version 2.1.2.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| FreeRDP | FreeRDP | < 2.1.2 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 12 | freerdp2 | 2.1.2+dfsg1-1 | — |
| Debian 10 | freerdp2 | 2.3.0+dfsg1-2+deb10u3 | DLA-3606-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | freerdp2 | 2.2.0+dfsg1-0ubuntu0.20.04.1 | USN-4481-1 |
| Ubuntu 18.04 LTS | freerdp | No fix yet | — |
| Ubuntu 18.04 LTS | freerdp2 | 2.2.0+dfsg1-0ubuntu0.18.04.1 | USN-4481-1 |
| Ubuntu 16.04 LTS | freerdp | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | freerdp +4 | 2:2.2.0-1.el8 | RHSA-2021:1849 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | freerdp-devel | 2:2.2.0-1.el8 | ALSA-2021:1849 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | freerdp | 2:2.2.0-1.el8 | RLSA-2021:1849 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP2 | freerdp | 2.1.2-15.7.1 | SUSE-SU-2020:2068-1 |
| SLES 15 SP1 | freerdp | 2.1.2-10.15.1 | SUSE-SU-2020:2032-1 |
| SLES 12 SP5 | freerdp | 2.1.2-12.20.1 | SUSE-SU-2020:2272-1 |
| SLES 12 SP5 | vinagre | 3.20.2-16.3.3 | SUSE-SU-2020:2272-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | freerdp2 | 2.4.0-2.1 | openSUSE-SU-2024:10768-1 |
| openSUSE Leap 15.1 | freerdp | 2.1.2-lp151.5.6.1 | openSUSE-SU-2020:1090-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | freerdp +1 | 2.1.2-r0 | — |
| Alpine v3.23 | freerdp +1 | 2.1.2-r0 | — |
| Alpine v3.22 | freerdp +1 | 2.1.2-r0 | — |
| Alpine v3.21 | freerdp | 2.1.2-r0 | — |
| Alpine v3.20 | freerdp | 2.1.2-r0 | — |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | freerdp | 2.1.2-r0 | — |
| Alpine v3.18 | freerdp | 2.1.2-r0 | — |
| Alpine v3.17 | freerdp | 2.1.2-r0 | — |
| Alpine v3.16 | freerdp | 2.1.2-r0 | — |
| Alpine v3.15 | freerdp | 2.1.2-r0 | — |
| Alpine v3.14 | freerdp | 2.1.2-r0 | — |
| Alpine v3.13 | freerdp | 2.1.2-r0 | — |
| Alpine v3.12 | freerdp | 2.1.2-r0 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | freerdp +4 | 2:2.2.0-1.el8 | ELSA-2021-1849 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 1 repository
-
SpiralBL0CK/CVE-2020-11097-POC ★ 0 · May 26, 2025
POC TO CRASH FREERDP USING CVE-2020-11097
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 12
- ALSA-2021:1849 Moderate: freerdp security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- WID-SEC-2026-2644 Red Hat Enterprise Linux (FreeRDP): Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 4, 2026
- RHSA-2021:1849 Red Hat Security Advisory: freerdp security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-4481-1 freerdp2 vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DLA-3606-1 freerdp2 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2021:1849 Moderate: freerdp security, bug fix, and enhancement update Rocky Linux Security Advisories · Feb 5, 2026
- SUSE-SU-2020:2068-1 Security update for freerdp SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2020:1090-1 Security update for freerdp SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:2032-1 Security update for freerdp SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10768-1 freerdp-2.4.0-2.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2020:2272-1 Security update for freerdp SUSE / openSUSE Security Updates · Feb 4, 2026
- ELSA-2021-1849 Moderate: freerdp security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 25, 2021
References
- http://www.freerdp.com/2020/06/22/2_1_2-released
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-c8x2-c3c9-9r3f
- https://github.com/FreeRDP/FreeRDP/commit/58a3122250d54de3a944c487776bcd4d1da4721e
- openSUSE-SU-2020:1090 vendor-advisory
- FEDORA-2020-8d5f86e29a vendor-advisory
- FEDORA-2020-a3432485db vendor-advisory
- USN-4481-1 vendor-advisory
- [debian-lts-announce] 20231007 [SECURITY] [DLA 3606-1] freerdp2 security update mailing-list