Description
In OpenSSH 7.9, due to accepting and displaying arbitrary stderr output from the server, a malicious server (or Man-in-The-Middle attacker) can manipulate the client output, for example to use ANSI control codes to hide additional files being transferred.
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 14 | openssh | No fix yet | — |
| Debian 13 | openssh | No fix yet | — |
| Debian 12 | openssh | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | openssh-ssh1 | No fix yet | — |
| Ubuntu 18.04 LTS | openssh-ssh1 | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | openssh | No fix yet | — |
| Ubuntu Pro 18.04 LTS | openssh | No fix yet | — |
| Ubuntu Pro 16.04 LTS | openssh | No fix yet | — |
| Ubuntu Pro 14.04 LTS | openssh | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 | openssh +1 | 7.6p1-9.13.1 | SUSE-SU-2019:0126-1 |
| SLES 12 SP4 | openssh +1 | 7.2p2-74.35.1 | SUSE-SU-2019:0132-1 |
| SLES 12 SP3 | openssh +1 | 7.2p2-74.35.1 | SUSE-SU-2019:0132-1 |
| SLES 12 SP2 | openssh +1 | 7.2p2-74.35.1 | SUSE-SU-2019:0132-1 |
| SLES 12 SP1 | openssh +1 | 6.6p1-54.26.1 | SUSE-SU-2019:0125-1 |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 | openssh +1 | 6.6p1-54.26.1 | SUSE-SU-2019:0125-1 |
| SLES 11 SP4 | openssh +1 | 6.6p1-36.12.1 | SUSE-SU-2019:13931-1 |
| SLES for SAP 12 SP4 | openssh +1 | 7.2p2-74.35.1 | SUSE-SU-2019:0132-1 |
| SLES for SAP 12 SP3 | openssh +1 | 7.2p2-74.35.1 | SUSE-SU-2019:0132-1 |
| SLES for SAP 12 SP2 | openssh +1 | 7.2p2-74.35.1 | SUSE-SU-2019:0132-1 |
| SLES for SAP 12 SP1 | openssh +1 | 6.6p1-54.26.1 | SUSE-SU-2019:0125-2 |
| SLES for SAP 11 SP4 | openssh +1 | 6.6p1-36.12.1 | SUSE-SU-2019:13931-1 |
| SUSE OpenStack Cloud 7 | openssh +1 | 7.2p2-74.35.1 | SUSE-SU-2019:0132-1 |
| SUSE Enterprise Storage 4 | openssh +1 | 7.2p2-74.35.1 | SUSE-SU-2019:0132-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | openssh | 8.4p1-7.4 | openSUSE-SU-2024:11124-1 |
| openSUSE Leap 15.0 | openssh | 7.6p1-lp150.8.9.1 | openSUSE-SU-2019:0091-1 |
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.
Exploit-DB 2
- SCP Client - Multiple Vulnerabilities (SSHtranger Things) EDB-46193 · remote · Jan 18, 2019
- OpenSSH SCP Client - Write Arbitrary Files EDB-46516 · remote · Jan 11, 2019
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 13
- SSA-398330 SSA-398330: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP >= V3.1.0 and < V3.1.5 Siemens ProductCERT · Oct 13, 2026
- WID-SEC-2023-1995 SCP in mehreren Produkten: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 4, 2026
- SUSE-SU-2019:0125-1 Security update for openssh SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:11124-1 openssh-8.4p1-7.4 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:0125-2 Security update for openssh SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2019:0091-1 Security update for openssh SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:0132-1 Security update for openssh SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:13931-1 Security update for openssh SUSE / openSUSE Security Updates · Feb 4, 2026
- ICSA-23-348-10 Siemens SIMATIC S7-1500 CISA ICS & IT advisories · Aug 12, 2025
- SUSE-SU-2019:0126-1 Security update for openssh SUSE / openSUSE Security Updates · May 2, 2025
- WID-SEC-2024-1082 Juniper JUNOS: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 9, 2024
- ICSA-22-349-21 Siemens SCALANCE X-200RNA Switch Devices CISA ICS & IT advisories · Dec 13, 2022
- SSA-412672 SSA-412672: Multiple OpenSSL and OpenSSH Vulnerabilities in SCALANCE X-200RNA Switch Devices before V3.2.7 Siemens ProductCERT · Dec 13, 2022
References
- https://security.netapp.com/advisory/ntap-20190213-0001/
- https://cvsweb.openbsd.org/src/usr.bin/ssh/scp.c
- https://cvsweb.openbsd.org/src/usr.bin/ssh/progressmeter.c
- https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txt
- 46193 exploit
- GLSA-201903-16 vendor-advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf