Description
FreeRDP is a free remote desktop protocol library and clients. Affected versions of FreeRDP are missing a range check for input offset index in ZGFX decoder. A malicious server can trick a FreeRDP based client to read out of bound data and try to decode it. This issue has been addressed in version 2.9.0. There are no known workarounds for this issue.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| FreeRDP | FreeRDP | < 2.9.0 | — |
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 | 2.9.0+dfsg1-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | freerdp2 | 2.6.1+dfsg1-3ubuntu2.3 | USN-5734-1 |
| Ubuntu 20.04 LTS | freerdp2 | 2.2.0+dfsg1-0ubuntu0.20.04.4 | USN-5734-1 |
| Ubuntu 18.04 LTS | freerdp | No fix yet | — |
| Ubuntu 18.04 LTS | freerdp2 | 2.2.0+dfsg1-0ubuntu0.18.04.4 | USN-5734-1 |
| Ubuntu 16.04 LTS | freerdp | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | freerdp +4 | 2:2.4.1-5.el9 | RHSA-2023:2326 |
| RHEL 8 | freerdp +4 | 2:2.2.0-10.el8 | RHSA-2023:2851 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | freerdp +4 | 2:2.4.1-5.el9 | ALSA-2023:2326 |
| AlmaLinux 8 | freerdp +4 | 2:2.2.0-10.el8 | ALSA-2023:2851 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | freerdp | 2:2.2.0-10.el8 | RLSA-2023:2851 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP4 | freerdp | 2.4.0-150400.3.18.1 | SUSE-SU-2023:0399-1 |
| SLES 12 SP5 | freerdp | 2.1.2-12.35.1 | SUSE-SU-2023:0400-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.4 | freerdp | 2.4.0-150400.3.18.1 | SUSE-SU-2023:0399-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | freerdp +1 | 2.9.0-r0 | — |
| Alpine v3.23 | freerdp +1 | 2.9.0-r0 | — |
| Alpine v3.22 | freerdp +1 | 2.9.0-r0 | — |
| Alpine v3.21 | freerdp | 2.9.0-r0 | — |
| Alpine v3.20 | freerdp | 2.9.0-r0 | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | freerdp | 2.9.0-r0 | — |
| Alpine v3.18 | freerdp | 2.9.0-r0 | — |
| Alpine v3.17 | freerdp | 2.9.0-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | freerdp +4 | 2:2.2.0-10.amzn2.0.1 | ALAS2-2023-1930 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | freerdp +4 | 2:2.4.1-5.el9 | ELSA-2023-2326 |
| Oracle Linux 8 | freerdp +4 | 2:2.2.0-10.el8 | ELSA-2023-2851 |
Advisories 12
- ALSA-2023:2326 Moderate: freerdp security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2023:2851 Moderate: freerdp security update AlmaLinux Security Advisories · Oct 29, 2026
- WID-SEC-2023-1185 Red Hat Enterprise Linux: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 3, 2026
- RHSA-2023:2851 Red Hat Security Advisory: freerdp security update Red Hat Security Advisories (RHSA) · Jun 27, 2026
- RHSA-2023:2326 Red Hat Security Advisory: freerdp security update Red Hat Security Advisories (RHSA) · Jun 27, 2026
- RLSA-2023:2851 Moderate: freerdp security update Rocky Linux Security Advisories · Jun 25, 2026
- USN-5734-1 freerdp2 vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- SUSE-SU-2023:0400-1 Security update for freerdp SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:0399-1 Security update for freerdp SUSE / openSUSE Security Updates · Feb 4, 2026
- ELSA-2023-2851 Moderate: freerdp security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 24, 2023
- ELSA-2023-2326 Moderate: freerdp security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · May 15, 2023
- ALAS2-2023-1930 Important: freerdp security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Feb 4, 2023
References
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-99cm-4gw7-c8jh
- FEDORA-2022-fd6e43dec8 vendor-advisory
- FEDORA-2022-076b1c9978 vendor-advisory
- GLSA-202401-16 vendor-advisory