Description
FreeRDP prior to version 2.0.0-rc4 contains several Out-Of-Bounds Reads in the NTLM Authentication module that results in a Denial of Service (segfault).
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Check Point Software Technologies | FreeRDP | All versions prior to 2.0.0-rc4 | — |
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 | 2.0.0~git20181120.1.e21b72c95+dfsg1-1 | — |
| Debian 8 | freerdp | 1.1.0~git20140921.1.440916e+dfsg1-13~deb8u3 | DLA-1666-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | freerdp | 1.1.0~git20140921.1.440916e+dfsg1-15ubuntu1.18.04.1 | USN-3845-2 |
| Ubuntu 18.04 LTS | freerdp2 | 2.0.0~git20170725.1.1648deb+dfsg1-7ubuntu0.1 | USN-3845-1 |
| Ubuntu 16.04 LTS | freerdp | 1.1.0~git20140921.1.440916e+dfsg1-5ubuntu1.3 | USN-3845-1 |
| Ubuntu 14.04 LTS | freerdp | 1.0.2-2ubuntu1.2 | USN-3845-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 | freerdp | 2.0.0~rc4-3.3.1 | SUSE-SU-2019:0539-1 |
| 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 |
| SLES 12 SP4 | freerdp | 2.0.0~git.1463131968.4e66df7-12.8.1 | SUSE-SU-2019:0134-1 |
| SLES 12 SP3 | freerdp | 2.0.0~git.1463131968.4e66df7-12.8.1 | SUSE-SU-2019:0134-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | freerdp2 | 2.4.0-2.1 | openSUSE-SU-2024:10768-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | freerdp +1 | 2.0.0_rc4-r0 | — |
| Alpine v3.23 | freerdp +1 | 2.0.0_rc4-r0 | — |
| Alpine v3.22 | freerdp +1 | 2.0.0_rc4-r0 | — |
| Alpine v3.21 | freerdp | 2.0.0_rc4-r0 | — |
| Alpine v3.20 | freerdp | 2.0.0_rc4-r0 | — |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | freerdp | 2.0.0_rc4-r0 | — |
| Alpine v3.18 | freerdp | 2.0.0_rc4-r0 | — |
| Alpine v3.17 | freerdp | 2.0.0_rc4-r0 | — |
| Alpine v3.16 | freerdp | 2.0.0_rc4-r0 | — |
| Alpine v3.15 | freerdp | 2.0.0_rc4-r0 | — |
| Alpine v3.14 | freerdp | 2.0.0_rc4-r0 | — |
| Alpine v3.13 | freerdp | 2.0.0_rc4-r0 | — |
| Alpine v3.12 | freerdp | 2.0.0_rc4-r0 | — |
| Alpine v3.11 | freerdp | 2.0.0_rc4-r0 | — |
| Alpine v3.10 | freerdp | 2.0.0_rc4-r0 | — |
| Alpine v3.9 | freerdp | 2.0.0_rc4-r0 | — |
Advisories 7
- USN-3845-2 freerdp vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- USN-3845-1 freerdp, freerdp2 vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-1666-1 freerdp - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2019:0134-1 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
- SUSE-SU-2019:0539-1 Security update for freerdp SUSE / openSUSE Security Updates · Feb 4, 2026
References
- 106938 vdb-entry
- https://github.com/FreeRDP/FreeRDP/commit/2ee663f39dc8dac3d9988e847db19b2d7e3ac8c6
- [debian-lts-announce] 20190209 [SECURITY] [DLA 1666-1] freerdp security update mailing-list
- USN-3845-1 vendor-advisory
- https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients/
- USN-3845-2 vendor-advisory