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CVE-2019-6110

In OpenSSH 7.9, due to accepting and displaying arbitrary stderr output from the server, a...

6.8 MediumPublic exploitFix available

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
High
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
None

Exploit likelihood

24.9%Up 18.7 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 6.8

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.

Record
CVE-2019-6110
CVSS 3.1
6.8 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
CVSS 2.0
4.0 MediumAV:N/AC:H/Au:N/C:P/I:P/A:N
Weakness
CWE-838
Updated
2026-11-02
CVE List 6.8

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.

Record
CVE-2019-6110
CVSS 3.1
6.8 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Weakness
CWE-838
Updated
2026-11-02
EUVDEUVD-2019-15677 6.8

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.

Record
EUVD-2019-15677
CVSS 3.1
6.8 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-mv2j-4mm8-9xgv 6.8

In OpenSSH 7.9, due to accepting and displaying arbitrary stderr output from the server, a...

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.

Record
GHSA-mv2j-4mm8-9xgv
CVSS 3.0
6.8 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Weakness
CWE-838
Updated
2026-11-02
OSV 6.8

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.

Record
CVE-2019-6110
CVSS 3.1
6.8 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Updated
2026-11-02
OSVDEBIAN-CVE-2019-6110 6.8

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.

Record
DEBIAN-CVE-2019-6110
CVSS 3.1
6.8 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Updated
2026-11-02
Show 8 moreShow less
OSVUBUNTU-CVE-2019-6110 6.8

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.

Record
UBUNTU-CVE-2019-6110
CVSS 3.1
6.8 MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
CVSS 3.0
6.8 MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Updated
2026-11-02
OSVopenSUSE-SU-2019:0091-1 No score

Security update for openssh

This update for openssh fixes the following issues:

Security issues fixed:

  • CVE-2018-20685: Fixed an issue where scp client allows remote SSH servers to bypass intended access restrictions (bsc#1121571)
  • CVE-2019-6109: Fixed an issue where the scp client would allow malicious remote SSH servers to manipulate terminal output via the object name, e.g. by inserting ANSI escape sequences (bsc#1121816)
  • CVE-2019-6110: Fixed an issue where the scp client would allow malicious remote SSH servers to manipulate stderr output, e.g. by inserting ANSI escape sequences (bsc#1121818)
  • CVE-2019-6111: Fixed an issue where the scp client would allow malicious remote SSH servers to execute directory traversal attacks and overwrite files (bsc#1121821)

This update was imported from the SUSE:SLE-15:Update update project.

Record
openSUSE-SU-2019:0091-1
Updated
2026-11-02
OSVopenSUSE-SU-2024:11124-1 No score

openssh-8.4p1-7.4 on GA media

These are all security issues fixed in the openssh-8.4p1-7.4 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:11124-1
Updated
2026-11-02
OSVSUSE-SU-2019:0125-1 No score

Security update for openssh

This update for openssh fixes the following issues:

Security issue fixed:

  • CVE-2018-20685: Fixed an issue where scp client allows remote SSH servers to bypass intended access restrictions (bsc#1121571)
  • CVE-2019-6109: Fixed an issue where the scp client would allow malicious remote SSH servers to manipulate terminal output via the object name, e.g. by inserting ANSI escape sequences (bsc#1121816)
  • CVE-2019-6110: Fixed an issue where the scp client would allow malicious remote SSH servers to manipulate stderr output, e.g. by inserting ANSI escape sequences (bsc#1121818)
  • CVE-2019-6111: Fixed an issue where the scp client would allow malicious remote SSH servers to execute directory traversal attacks and overwrite files (bsc#1121821)
Record
SUSE-SU-2019:0125-1
Updated
2026-11-02
OSVSUSE-SU-2019:0125-2 No score

Security update for openssh

This update for openssh fixes the following issues:

Security issue fixed:

  • CVE-2018-20685: Fixed an issue where scp client allows remote SSH servers to bypass intended access restrictions (bsc#1121571)
  • CVE-2019-6109: Fixed an issue where the scp client would allow malicious remote SSH servers to manipulate terminal output via the object name, e.g. by inserting ANSI escape sequences (bsc#1121816)
  • CVE-2019-6110: Fixed an issue where the scp client would allow malicious remote SSH servers to manipulate stderr output, e.g. by inserting ANSI escape sequences (bsc#1121818)
  • CVE-2019-6111: Fixed an issue where the scp client would allow malicious remote SSH servers to execute directory traversal attacks and overwrite files (bsc#1121821)
Record
SUSE-SU-2019:0125-2
Updated
2026-11-02
OSVSUSE-SU-2019:0126-1 No score

Security update for openssh

This update for openssh fixes the following issues:

Security issues fixed:

  • CVE-2018-20685: Fixed an issue where scp client allows remote SSH servers to bypass intended access restrictions (bsc#1121571)
  • CVE-2019-6109: Fixed an issue where the scp client would allow malicious remote SSH servers to manipulate terminal output via the object name, e.g. by inserting ANSI escape sequences (bsc#1121816)
  • CVE-2019-6110: Fixed an issue where the scp client would allow malicious remote SSH servers to manipulate stderr output, e.g. by inserting ANSI escape sequences (bsc#1121818)
  • CVE-2019-6111: Fixed an issue where the scp client would allow malicious remote SSH servers to execute directory traversal attacks and overwrite files (bsc#1121821)
Record
SUSE-SU-2019:0126-1
Updated
2026-11-02
OSVSUSE-SU-2019:0132-1 No score

Security update for openssh

This update for openssh fixes the following issues:

Security issue fixed:

  • CVE-2018-20685: Fixed an issue where scp client allows remote SSH servers to bypass intended access restrictions (bsc#1121571)
  • CVE-2019-6109: Fixed an issue where the scp client would allow malicious remote SSH servers to manipulate terminal output via the object name, e.g. by inserting ANSI escape sequences (bsc#1121816)
  • CVE-2019-6110: Fixed an issue where the scp client would allow malicious remote SSH servers to manipulate stderr output, e.g. by inserting ANSI escape sequences (bsc#1121818)
  • CVE-2019-6111: Fixed an issue where the scp client would allow malicious remote SSH servers to execute directory traversal attacks and overwrite files (bsc#1121821)
Record
SUSE-SU-2019:0132-1
Updated
2026-11-02
OSVSUSE-SU-2019:13931-1 No score

Security update for openssh

This update for openssh fixes the following issues:

Security issue fixed:

  • CVE-2018-20685: Fixed an issue where scp client allows remote SSH servers to bypass intended access restrictions (bsc#1121571)
  • CVE-2019-6109: Fixed an issue where the scp client would allow malicious remote SSH servers to manipulate terminal output via the object name, e.g. by inserting ANSI escape sequences (bsc#1121816)
  • CVE-2019-6110: Fixed an issue where the scp client would allow malicious remote SSH servers to manipulate stderr output, e.g. by inserting ANSI escape sequences (bsc#1121818)
  • CVE-2019-6111: Fixed an issue where the scp client would allow malicious remote SSH servers to execute directory traversal attacks and overwrite files (bsc#1121821)
Record
SUSE-SU-2019:13931-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
openssh
Debian:12
All versions, plus listed versions
1:10.0p1-11:10.0p1-21:10.0p1-31:10.0p1-41:10.0p1-5
Show 45 moreShow less
1:10.0p1-5~bpo12+21:10.0p1-61:10.0p1-71:10.0p1-7~bpo12+11:10.0p1-81:10.1p1-11:10.1p1-21:10.2p1-11:10.2p1-21:10.2p1-2~bpo13+11:10.2p1-31:10.2p1-41:10.2p1-51:10.2p1-61:10.2p1-6~bpo13+11:10.3p1-11:10.3p1-1~bpo13+11:10.3p1-21:10.3p1-31:10.3p1-41:10.3p1-51:10.3p1-71:10.3p1-81:10.3p1-91:10.4p1-11:10.4p1-21:10.4p1-31:10.4p1-41:10.4p1-51:10.5p1-11:10.6p1-11:9.2p1-21:9.2p1-2+deb12u11:9.2p1-2+deb12u101:9.2p1-2+deb12u21:9.2p1-2+deb12u31:9.2p1-2+deb12u41:9.2p1-2+deb12u51:9.2p1-2+deb12u61:9.2p1-2+deb12u71:9.2p1-2+deb12u81:9.2p1-2+deb12u91:9.3p1-11:9.3p1-1+loong641:9.3p2-1
None known
openssh
Debian:13
All versions, plus listed versions
1:10.0p1-71:10.0p1-7+deb13u11:10.0p1-7+deb13u21:10.0p1-7+deb13u31:10.0p1-7+deb13u4
Show 27 moreShow less
1:10.0p1-81:10.1p1-11:10.1p1-21:10.2p1-11:10.2p1-21:10.2p1-2~bpo13+11:10.2p1-31:10.2p1-41:10.2p1-51:10.2p1-61:10.2p1-6~bpo13+11:10.3p1-11:10.3p1-1~bpo13+11:10.3p1-21:10.3p1-31:10.3p1-41:10.3p1-51:10.3p1-71:10.3p1-81:10.3p1-91:10.4p1-11:10.4p1-21:10.4p1-31:10.4p1-41:10.4p1-51:10.5p1-11:10.6p1-1
None known
openssh
Debian:14
All versions, plus listed versions
1:10.0p1-71:10.0p1-81:10.1p1-11:10.1p1-21:10.2p1-1
Show 23 moreShow less
1:10.2p1-21:10.2p1-2~bpo13+11:10.2p1-31:10.2p1-41:10.2p1-51:10.2p1-61:10.2p1-6~bpo13+11:10.3p1-11:10.3p1-1~bpo13+11:10.3p1-21:10.3p1-31:10.3p1-41:10.3p1-51:10.3p1-71:10.3p1-81:10.3p1-91:10.4p1-11:10.4p1-21:10.4p1-31:10.4p1-41:10.4p1-51:10.5p1-11:10.6p1-1
None known
openssh
SUSE:Linux Enterprise Server 12-LTSS
before 6.6p1-54.26.1
6.6p1-54.26.1
openssh-askpass-gnome
SUSE:Linux Enterprise Server 12-LTSS
before 6.6p1-54.26.1
6.6p1-54.26.1
openssh
SUSE:Linux Enterprise Server 12 SP1-LTSS
before 6.6p1-54.26.1
6.6p1-54.26.1
openssh-askpass-gnome
SUSE:Linux Enterprise Server 12 SP1-LTSS
before 6.6p1-54.26.1
6.6p1-54.26.1
openssh
SUSE:Linux Enterprise Server for SAP Applications 12 SP1
before 6.6p1-54.26.1
6.6p1-54.26.1
openssh-askpass-gnome
SUSE:Linux Enterprise Server for SAP Applications 12 SP1
before 6.6p1-54.26.1
6.6p1-54.26.1
openssh
SUSE:Linux Enterprise Module for Basesystem 15
before 7.6p1-9.13.1
7.6p1-9.13.1
Show 36 moreShow less
Affected packages
PackageAffectedFixed
openssh-askpass-gnome
SUSE:Linux Enterprise Module for Desktop Applications 15
before 7.6p1-9.13.1
7.6p1-9.13.1
openssh
SUSE:Linux Enterprise Module for Server Applications 15
before 7.6p1-9.13.1
7.6p1-9.13.1
openssh
SUSE:OpenStack Cloud 7
before 7.2p2-74.35.1
7.2p2-74.35.1
openssh-askpass-gnome
SUSE:OpenStack Cloud 7
before 7.2p2-74.35.1
7.2p2-74.35.1
openssh
SUSE:Linux Enterprise Desktop 12 SP3
before 7.2p2-74.35.1
7.2p2-74.35.1
openssh-askpass-gnome
SUSE:Linux Enterprise Desktop 12 SP3
before 7.2p2-74.35.1
7.2p2-74.35.1
openssh
SUSE:Linux Enterprise Desktop 12 SP4
before 7.2p2-74.35.1
7.2p2-74.35.1
openssh-askpass-gnome
SUSE:Linux Enterprise Desktop 12 SP4
before 7.2p2-74.35.1
7.2p2-74.35.1
openssh
SUSE:Linux Enterprise Server for SAP Applications 12 SP2
before 7.2p2-74.35.1
7.2p2-74.35.1
openssh-askpass-gnome
SUSE:Linux Enterprise Server for SAP Applications 12 SP2
before 7.2p2-74.35.1
7.2p2-74.35.1
openssh
SUSE:Linux Enterprise Server 12 SP2-LTSS
before 7.2p2-74.35.1
7.2p2-74.35.1
openssh-askpass-gnome
SUSE:Linux Enterprise Server 12 SP2-LTSS
before 7.2p2-74.35.1
7.2p2-74.35.1
openssh
SUSE:Linux Enterprise Server 12 SP2-BCL
before 7.2p2-74.35.1
7.2p2-74.35.1
openssh-askpass-gnome
SUSE:Linux Enterprise Server 12 SP2-BCL
before 7.2p2-74.35.1
7.2p2-74.35.1
openssh
SUSE:Linux Enterprise Server 12 SP3
before 7.2p2-74.35.1
7.2p2-74.35.1
openssh-askpass-gnome
SUSE:Linux Enterprise Server 12 SP3
before 7.2p2-74.35.1
7.2p2-74.35.1
openssh
SUSE:Linux Enterprise Server for SAP Applications 12 SP3
before 7.2p2-74.35.1
7.2p2-74.35.1
openssh-askpass-gnome
SUSE:Linux Enterprise Server for SAP Applications 12 SP3
before 7.2p2-74.35.1
7.2p2-74.35.1
openssh
SUSE:Linux Enterprise Server 12 SP4
before 7.2p2-74.35.1
7.2p2-74.35.1
openssh-askpass-gnome
SUSE:Linux Enterprise Server 12 SP4
before 7.2p2-74.35.1
7.2p2-74.35.1
openssh
SUSE:Linux Enterprise Server for SAP Applications 12 SP4
before 7.2p2-74.35.1
7.2p2-74.35.1
openssh-askpass-gnome
SUSE:Linux Enterprise Server for SAP Applications 12 SP4
before 7.2p2-74.35.1
7.2p2-74.35.1
openssh
SUSE:Enterprise Storage 4
before 7.2p2-74.35.1
7.2p2-74.35.1
openssh-askpass-gnome
SUSE:Enterprise Storage 4
before 7.2p2-74.35.1
7.2p2-74.35.1
openssh
SUSE:Linux Enterprise Server 11 SP4
before 6.6p1-36.12.1
6.6p1-36.12.1
openssh-askpass-gnome
SUSE:Linux Enterprise Server 11 SP4
before 6.6p1-36.12.1
6.6p1-36.12.1
openssh
SUSE:Linux Enterprise Server for SAP Applications 11 SP4
before 6.6p1-36.12.1
6.6p1-36.12.1
openssh-askpass-gnome
SUSE:Linux Enterprise Server for SAP Applications 11 SP4
before 6.6p1-36.12.1
6.6p1-36.12.1
openssh
Ubuntu:Pro:14.04:LTS
All versions, plus listed versions
1:6.2p2-61:6.2p2-6ubuntu11:6.4p1-11:6.4p1-21:6.5p1-1
Show 22 moreShow less
1:6.5p1-21:6.5p1-31:6.5p1-41:6.5p1-61:6.6p1-11:6.6p1-21:6.6p1-2ubuntu11:6.6p1-2ubuntu21:6.6p1-2ubuntu2.21:6.6p1-2ubuntu2.31:6.6p1-2ubuntu2.41:6.6p1-2ubuntu2.61:6.6p1-2ubuntu2.71:6.6p1-2ubuntu2.81:6.6p1-2ubuntu2.101:6.6p1-2ubuntu2.111:6.6p1-2ubuntu2.121:6.6p1-2ubuntu2.131:6.6p1-2ubuntu2.13+esm11:6.6p1-2ubuntu2.13+esm21:6.6p1-2ubuntu2.13+esm31:6.6p1-2ubuntu2.13+esm4
None known
openssh
Ubuntu:Pro:16.04:LTS
All versions, plus listed versions
1:6.9p1-21:6.9p1-31:7.1p1-11:7.1p1-31:7.1p1-4
Show 27 moreShow less
1:7.1p1-61:7.1p2-11:7.1p2-21:7.2p1-11:7.2p2-11:7.2p2-21:7.2p2-31:7.2p2-41:7.2p2-4ubuntu11:7.2p2-4ubuntu2.11:7.2p2-4ubuntu2.21:7.2p2-4ubuntu2.41:7.2p2-4ubuntu2.51:7.2p2-4ubuntu2.61:7.2p2-4ubuntu2.71:7.2p2-4ubuntu2.81:7.2p2-4ubuntu2.101:7.2p2-4ubuntu2.10+esm11:7.2p2-4ubuntu2.10+esm21:7.2p2-4ubuntu2.10+esm31:7.2p2-4ubuntu2.10+esm41:7.2p2-4ubuntu2.10+esm51:7.2p2-4ubuntu2.10+esm61:7.2p2-4ubuntu2.10+esm71:7.2p2-4ubuntu2.10+esm81:7.2p2-4ubuntu2.10+esm91:7.2p2-4ubuntu2.10+esm10
None known
openssh
Ubuntu:Pro:18.04:LTS
All versions, plus listed versions
1:7.5p1-101:7.6p1-41:7.6p1-4ubuntu0.11:7.6p1-4ubuntu0.21:7.6p1-4ubuntu0.3
Show 9 moreShow less
1:7.6p1-4ubuntu0.51:7.6p1-4ubuntu0.61:7.6p1-4ubuntu0.71:7.6p1-4ubuntu0.7+esm11:7.6p1-4ubuntu0.7+esm21:7.6p1-4ubuntu0.7+esm31:7.6p1-4ubuntu0.7+esm41:7.6p1-4ubuntu0.7+esm51:7.6p1-4ubuntu0.7+esm6
None known
openssh-ssh1
Ubuntu:18.04:LTS
All versions, plus listed versions
1:7.5p1-81:7.5p1-91:7.5p1-9build11:7.5p1-10
None known
openssh
Ubuntu:Pro:20.04:LTS
All versions, plus listed versions
1:8.0p1-6build11:8.1p1-11:8.1p1-51:8.2p1-41:8.2p1-4ubuntu0.1
Show 14 moreShow less
1:8.2p1-4ubuntu0.21:8.2p1-4ubuntu0.31:8.2p1-4ubuntu0.41:8.2p1-4ubuntu0.51:8.2p1-4ubuntu0.71:8.2p1-4ubuntu0.81:8.2p1-4ubuntu0.91:8.2p1-4ubuntu0.101:8.2p1-4ubuntu0.111:8.2p1-4ubuntu0.121:8.2p1-4ubuntu0.131:8.2p1-4ubuntu0.13+esm11:8.2p1-4ubuntu0.13+esm21:8.2p1-4ubuntu0.13+esm3
None known
openssh-ssh1
Ubuntu:20.04:LTS
All versions, plus listed versions
1:7.5p1-11build1
None known
openssh
openSUSE:Leap 15.0
before 7.6p1-lp150.8.9.1
7.6p1-lp150.8.9.1
openssh
openSUSE:Tumbleweed
before 8.4p1-7.4
8.4p1-7.4

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
Exploit-DBSCP Client - Multiple Vulnerabilities (SSHtranger Things)2019-01-18
Exploit-DBOpenSSH SCP Client - Write Arbitrary Files2019-01-11

History

History
RecordedChangedSources
first indexedCVE List, EUVD, Exploit-DB, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2019-6110 is a medium vulnerability (CVSS 6.8) in Openbsd Openssh, published January 18, 2019. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 24.9%, the 97th percentile. Fixed in openssh 6.6p1-54.26.1.

References

Show 31 moreShow less
This page doesn't list everything

Left out here: 28 versions. The JSON record has them.

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