CVE-2019-6109
First published: Thu Jul 23 2015(Updated: )
An issue was discovered in OpenSSH 7.9. Due to missing character encoding in the progress display, a malicious server (or Man-in-The-Middle attacker) can employ crafted object names to manipulate the client output, e.g., by using ANSI control codes to hide additional files being transferred. This affects refresh_progress_meter() in progressmeter.c.
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/openssh | <=1:7.9p1-5<=1:6.7p1-6 | 1:7.9p1-6 1:7.4p1-10+deb9u5 |
| OpenSSH | <=7.9 | |
| WinSCP | <=5.13 | |
| Ubuntu | =14.04 | |
| Ubuntu | =16.04 | |
| Ubuntu | =18.04 | |
| Ubuntu | =18.10 | |
| Debian Linux | =8.0 | |
| Debian Linux | =9.0 | |
| NetApp Management Services for Element Software | ||
| NetApp ONTAP Select Deploy Utility | ||
| NetApp Storage Automation Store | ||
| Red Hat Fedora | =30 | |
| Red Hat Enterprise Linux | =8.0 | |
| Red Hat Enterprise Linux Server EUS | =8.1 | |
| Red Hat Enterprise Linux Server EUS | =8.2 | |
| Red Hat Enterprise Linux Server EUS | =8.4 | |
| Red Hat Enterprise Linux Server EUS | =8.6 | |
| Red Hat Enterprise Linux Server | =8.2 | |
| Red Hat Enterprise Linux Server | =8.4 | |
| Red Hat Enterprise Linux Server | =8.6 | |
| Red Hat Enterprise Linux Server | =8.2 | |
| Red Hat Enterprise Linux Server | =8.4 | |
| Red Hat Enterprise Linux Server | =8.6 | |
| All of | ||
| Siemens Scalance X204RNA EEC Firmware | <3.2.7 | |
| Siemens Scalance X204RNA EEC | ||
| All of | ||
| Siemens Scalance X204RNA ECC Firmware | <3.2.7 | |
| Siemens Scalance X204RNA EEC Firmware | ||
| All of | ||
| Oracle Fujitsu M10-1 Firmware | <xcp2361 | |
| Oracle Fujitsu M10-1 | ||
| All of | ||
| Oracle Fujitsu M10-4 Firmware | <xcp2361 | |
| Oracle Fujitsu M10-4 | ||
| All of | ||
| Oracle Fujitsu M10-4S Firmware | <xcp2361 | |
| Fujitsu M10-4S | ||
| All of | ||
| Oracle Fujitsu M12-1 Firmware | <xcp2361 | |
| Oracle Fujitsu M12-1 Firmware | ||
| All of | ||
| Oracle Fujitsu M12-2 Firmware | <xcp2361 | |
| Fujitsu SPARC M12-2 | ||
| All of | ||
| Fujitsu SPARC M12-2S | <xcp2361 | |
| Fujitsu SPARC M12-2S | ||
| All of | ||
| Oracle Fujitsu M10-1 Firmware | <xcp3070 | |
| Oracle Fujitsu M10-1 | ||
| All of | ||
| Oracle Fujitsu M10-4 Firmware | <xcp3070 | |
| Oracle Fujitsu M10-4 | ||
| All of | ||
| Oracle Fujitsu M10-4S Firmware | <xcp3070 | |
| Fujitsu M10-4S | ||
| All of | ||
| Oracle Fujitsu M12-1 Firmware | <xcp3070 | |
| Oracle Fujitsu M12-1 Firmware | ||
| All of | ||
| Oracle Fujitsu M12-2 Firmware | <xcp3070 | |
| Fujitsu SPARC M12-2 | ||
| All of | ||
| Fujitsu SPARC M12-2S | <xcp3070 | |
| Fujitsu SPARC M12-2S | ||
| Siemens Scalance X204RNA EEC Firmware | <3.2.7 | |
| Siemens Scalance X204RNA EEC | ||
| Siemens Scalance X204RNA ECC Firmware | <3.2.7 | |
| Siemens Scalance X204RNA EEC Firmware | ||
| Oracle Fujitsu M10-1 Firmware | <xcp2361 | |
| Oracle Fujitsu M10-1 | ||
| Oracle Fujitsu M10-4 Firmware | <xcp2361 | |
| Oracle Fujitsu M10-4 | ||
| Oracle Fujitsu M10-4S Firmware | <xcp2361 | |
| Fujitsu M10-4S | ||
| Oracle Fujitsu M12-1 Firmware | <xcp2361 | |
| Oracle Fujitsu M12-1 Firmware | ||
| Oracle Fujitsu M12-2 Firmware | <xcp2361 | |
| Fujitsu SPARC M12-2 | ||
| Fujitsu SPARC M12-2S | <xcp2361 | |
| Fujitsu SPARC M12-2S | ||
| Oracle Fujitsu M10-1 Firmware | <xcp3070 | |
| Oracle Fujitsu M10-4 Firmware | <xcp3070 | |
| Oracle Fujitsu M10-4S Firmware | <xcp3070 | |
| Oracle Fujitsu M12-1 Firmware | <xcp3070 | |
| Oracle Fujitsu M12-2 Firmware | <xcp3070 | |
| Fujitsu SPARC M12-2S | <xcp3070 | |
| debian/openssh | 1:8.4p1-5+deb11u3 1:8.4p1-5+deb11u4 1:9.2p1-2+deb12u5 1:9.9p2-2 1:10.0p1-2 |
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Reference Links
- https://bugzilla.mindrot.org/show_bug.cgi?id=2434
- https://www.vinc17.net/
- https://www.vinc17.net/blog/
- https://salsa.debian.org/ssh-team/openssh/commit/acec67030803e542e01a0773a53a90cc8fad1fd4
- https://security-tracker.debian.org/tracker/CVE-2019-6109
- https://bugs.debian.org/793412
- https://salsa.debian.org/ssh-team/openssh/commit/bbf87fe18360e9dabdeb9af0cadff0f8087a5492
- https://salsa.debian.org/ssh-team/openssh/commit/5e6190b06b0904f5c99b131f65308b18dc7a6b2c
- https://security-tracker.debian.org/tracker/CVE-2018-20685
- https://security-tracker.debian.org/tracker/CVE-2019-6111
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=793412
- https://cvsweb.openbsd.org/src/usr.bin/ssh/progressmeter.c
- https://cvsweb.openbsd.org/src/usr.bin/ssh/scp.c
- https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txt
- https://usn.ubuntu.com/3885-1/
- https://www.debian.org/security/2019/dsa-4387
- https://security.netapp.com/advisory/ntap-20190213-0001/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/W3YVQ2BPTOVDCFDVNC2GGF5P5ISFG37G/
- https://security.gentoo.org/glsa/201903-16
- https://lists.debian.org/debian-lts-announce/2019/03/msg00030.html
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00058.html
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
- https://access.redhat.com/errata/RHSA-2019:3702
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
- https://launchpad.net/bugs/cve/CVE-2019-6109
- https://sintonen.fi/advisories/scp-name-validator.patch
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1666121
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1666119#c3
- https://access.redhat.com/security/cve/CVE-2019-6109
- https://nvd.nist.gov/vuln/detail/CVE-2019-6109
- https://access.redhat.com/security/cve/cve-2019-6109
- https://bugzilla.redhat.com/show_bug.cgi?id=1666119
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W3YVQ2BPTOVDCFDVNC2GGF5P5ISFG37G/
- https://bugzilla.mindrot.org/attachment.cgi?id=3228
- https://github.com/openssh/openssh-portable/commit/8976f1c4b2721c26e878151f52bdf346dfe2d54c
- https://github.com/openssh/openssh-portable/commit/bdc6c63c80b55bcbaa66b5fde31c1cb1d09a41eb
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-6109
- https://ubuntu.com/security/CVE-2019-6109
Frequently Asked Questions
What is the severity of CVE-2019-6109?
CVE-2019-6109 has been classified as a moderate severity vulnerability.
How do I fix CVE-2019-6109?
To fix CVE-2019-6109, upgrade OpenSSH to version 1:7.9p1-6 or higher.
Who is affected by CVE-2019-6109?
CVE-2019-6109 affects various versions of OpenSSH, especially those up to 7.9.
What type of attack does CVE-2019-6109 allow?
CVE-2019-6109 allows a malicious server or Man-in-The-Middle attacker to manipulate client output.
Which systems are affected by CVE-2019-6109?
Systems using vulnerable versions of OpenSSH, including Debian, Ubuntu, and Red Hat Enterprise Linux, are affected by CVE-2019-6109.
- collector/debian-bugs
- alias/CVE-2019-6109
- agent/type
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- collector/redhat-bugzilla
- source/Red Hat
- agent/weakness
- agent/severity
- collector/mitre-cve
- source/MITRE
- agent/references
- agent/remedy
- agent/last-modified-date
- agent/author
- agent/trending
- agent/source
- collector/usn-cve
- source/Ubuntu
- agent/description
- collector/security-tracker-debian
- source/Debian
- agent/event
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- agent/softwarecombine
- agent/tags
- collector/nvd-cve
- collector/nvd-index
- package-manager/debian
- vendor/openbsd
- canonical/openssh
- version/openssh/7.9
- vendor/winscp
- canonical/winscp
- version/winscp/5.13
- vendor/canonical
- canonical/ubuntu
- version/ubuntu/14.04
- version/ubuntu/16.04
- version/ubuntu/18.04
- version/ubuntu/18.10
- vendor/debian
- canonical/debian linux
- version/debian linux/8.0
- version/debian linux/9.0
- vendor/netapp
- canonical/netapp management services for element software
- canonical/netapp ontap select deploy utility
- canonical/netapp storage automation store
- vendor/fedoraproject
- canonical/red hat fedora
- version/red hat fedora/30
- vendor/redhat
- canonical/red hat enterprise linux
- version/red hat enterprise linux/8.0
- canonical/red hat enterprise linux server eus
- version/red hat enterprise linux server eus/8.1
- version/red hat enterprise linux server eus/8.2
- version/red hat enterprise linux server eus/8.4
- version/red hat enterprise linux server eus/8.6
- canonical/red hat enterprise linux server
- version/red hat enterprise linux server/8.2
- version/red hat enterprise linux server/8.4
- version/red hat enterprise linux server/8.6
- vendor/siemens
- canonical/siemens scalance x204rna eec firmware
- canonical/siemens scalance x204rna eec
- canonical/siemens scalance x204rna ecc firmware
- vendor/fujitsu
- canonical/oracle fujitsu m10-1 firmware
- canonical/oracle fujitsu m10-1
- canonical/oracle fujitsu m10-4 firmware
- canonical/oracle fujitsu m10-4
- canonical/oracle fujitsu m10-4s firmware
- canonical/fujitsu m10-4s
- canonical/oracle fujitsu m12-1 firmware
- canonical/oracle fujitsu m12-2 firmware
- canonical/fujitsu sparc m12-2
- canonical/fujitsu sparc m12-2s