Description
FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. In affected versions a missing offset validation may lead to an Out Of Bound Read in the function `gdi_multi_opaque_rect`. In particular there is no code to validate if the value `multi_opaque_rect->numRectangles` is less than 45. Looping through `multi_opaque_rect->`numRectangles without proper boundary checks can lead to Out-of-Bounds Read errors which will likely lead to a crash. This issue has been addressed in versions 2.11.0 and 3.0.0-beta3. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| FreeRDP | FreeRDP | < 2.11.0, >= 3.0.0-beta1, < 3.0.0-beta3 | — |
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 | 2.11.7+dfsg1-6~deb12u1 | — |
| Debian 11 | freerdp2 | 2.3.0+dfsg1-2+deb11u2 | DLA-4053-1 |
| Debian 10 | freerdp2 | 2.3.0+dfsg1-2+deb10u3 | DLA-3606-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | freerdp2 | 2.6.1+dfsg1-3ubuntu2.5 | USN-6522-1 |
| Ubuntu 20.04 LTS | freerdp2 | 2.2.0+dfsg1-0ubuntu0.20.04.6 | USN-6522-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | freerdp2 | 2.2.0+dfsg1-0ubuntu0.18.04.4+esm2 | USN-6522-2 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | freerdp +4 | 2:2.11.2-1.el9 | RHSA-2024:2208 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | freerdp +4 | 2:2.11.2-1.el9 | ALSA-2024:2208 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | freerdp | 2.4.0-150400.3.23.1 | SUSE-SU-2023:4893-1 |
| SLES 15 SP4 | freerdp | 2.4.0-150400.3.23.1 | SUSE-SU-2023:4893-1 |
| SLES 12 SP5 | freerdp | 2.1.2-12.38.1 | SUSE-SU-2023:4611-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | freerdp2 | 2.11.2-3.1 | openSUSE-SU-2024:13504-1 |
| openSUSE Leap 15.5 | freerdp | 2.4.0-150400.3.23.1 | SUSE-SU-2023:4893-1 |
| openSUSE Leap 15.4 | freerdp | 2.4.0-150400.3.23.1 | SUSE-SU-2023:4893-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | freerdp +4 | 2:2.11.1-1.amzn2.0.1 | ALAS2-2023-2269 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | freerdp +4 | 2:2.11.2-1.el9 | ELSA-2024-2208 |
Advisories 12
- ALSA-2024:2208 Moderate: freerdp security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2024:2208 Red Hat Security Advisory: freerdp security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-6522-1 freerdp2 vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- USN-6522-2 freerdp2 vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- WID-SEC-2023-2251 FreeRDP: Mehrere Schwachstellen BSI CERT-Bund (WID) · Mar 11, 2026
- DLA-4053-1 freerdp2 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3606-1 freerdp2 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2023:4893-1 Security update for freerdp SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:13504-1 freerdp-2.11.2-3.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2023:4611-1 Security update for freerdp SUSE / openSUSE Security Updates · Feb 4, 2026
- ELSA-2024-2208 Moderate: freerdp security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · May 2, 2024
- ALAS2-2023-2269 Moderate: freerdp security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 5, 2023
References
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-q5v5-qhj5-mh6m
- https://github.com/FreeRDP/FreeRDP/blob/63a2f65618748c12f79ff7450d46c6e194f2db76/include/freerdp/primary.h#L186-L196
- https://github.com/FreeRDP/FreeRDP/blob/63a2f65618748c12f79ff7450d46c6e194f2db76/libfreerdp/core/orders.c#L1503-L1504
- https://github.com/FreeRDP/FreeRDP/blob/63a2f65618748c12f79ff7450d46c6e194f2db76/libfreerdp/gdi/gdi.c#L723C1-L758
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OH2ATH2BKDNKCJAU4WPPXK4SHLE3UJUV/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/A6LLDAPEXRDJOM3PREDDD267SSNT77DP/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IHMTGKCZXJPQOR5ZD2I4GPDNP2DKRXMF/
- https://lists.debian.org/debian-lts-announce/2023/10/msg00008.html
- https://security.gentoo.org/glsa/202401-16