--- id: CVE-2019-6109 title: An issue was discovered in OpenSSH 7.9 summary: >- 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 co… severity: medium cvss: 6.8 cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N' cwe: - CWE-116 - CWE-116 vendor: openbsd product: openssh affected: - openssh <= 7.9 - winscp <= 5.13 - ubuntu_linux = 14.04 - ubuntu_linux = 16.04 - ubuntu_linux = 18.04 - ubuntu_linux = 18.10 - debian_linux = 8.0 - debian_linux = 9.0 - element_software - ontap_select_deploy - storage_automation_store - fedora = 30 - enterprise_linux = 8.0 - enterprise_linux_eus = 8.1 - enterprise_linux_eus = 8.2 - enterprise_linux_eus = 8.4 - enterprise_linux_eus = 8.6 - enterprise_linux_server_aus = 8.2 - enterprise_linux_server_aus = 8.4 - enterprise_linux_server_aus = 8.6 - enterprise_linux_server_tus = 8.2 - enterprise_linux_server_tus = 8.4 - enterprise_linux_server_tus = 8.6 - scalance_x204rna_firmware < 3.2.7 - scalance_x204rna_eec_firmware < 3.2.7 - m10-1_firmware < xcp2361 - m10-4_firmware < xcp2361 - m10-4s_firmware < xcp2361 - m12-1_firmware < xcp2361 - m12-2_firmware < xcp2361 - m12-2s_firmware < xcp2361 - m10-1_firmware < xcp3070 - m10-4_firmware < xcp3070 - m10-4s_firmware < xcp3070 - m12-1_firmware < xcp3070 - m12-2_firmware < xcp3070 - m12-2s_firmware < xcp3070 patched: - scalance_x204rna_firmware 3.2.7 - scalance_x204rna_eec_firmware 3.2.7 - m10-1_firmware xcp3070 - m10-4_firmware xcp3070 - m10-4s_firmware xcp3070 - m12-1_firmware xcp3070 - m12-2_firmware xcp3070 - m12-2s_firmware xcp3070 published: '2019-01-31' updated: '2026-10-14' sourceUpdated: '2026-10-14T07:16:55.607' source: NVD sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2019-6109' references: - url: 'http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00058.html' label: cve@mitre.org - url: 'https://access.redhat.com/errata/RHSA-2019:3702' label: cve@mitre.org - url: 'https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf' label: cve@mitre.org - url: 'https://cvsweb.openbsd.org/src/usr.bin/ssh/progressmeter.c' label: cve@mitre.org - url: 'https://cvsweb.openbsd.org/src/usr.bin/ssh/scp.c' label: cve@mitre.org - url: 'https://lists.debian.org/debian-lts-announce/2019/03/msg00030.html' label: cve@mitre.org - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W3YVQ2BPTOVDCFDVNC2GGF5P5ISFG37G/ label: cve@mitre.org - url: 'https://security.gentoo.org/glsa/201903-16' label: cve@mitre.org - url: 'https://security.netapp.com/advisory/ntap-20190213-0001/' label: cve@mitre.org - url: 'https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txt' label: cve@mitre.org - url: 'https://usn.ubuntu.com/3885-1/' label: cve@mitre.org - url: 'https://www.debian.org/security/2019/dsa-4387' label: cve@mitre.org - url: >- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html label: cve@mitre.org - url: 'http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00058.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://access.redhat.com/errata/RHSA-2019:3702' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://cvsweb.openbsd.org/src/usr.bin/ssh/progressmeter.c' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://cvsweb.openbsd.org/src/usr.bin/ssh/scp.c' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://lists.debian.org/debian-lts-announce/2019/03/msg00030.html' label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W3YVQ2BPTOVDCFDVNC2GGF5P5ISFG37G/ label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://security.gentoo.org/glsa/201903-16' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://security.netapp.com/advisory/ntap-20190213-0001/' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txt' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://usn.ubuntu.com/3885-1/' label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://www.debian.org/security/2019/dsa-4387' label: af854a3a-2127-422b-91ae-364da2661108 - url: >- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html label: af854a3a-2127-422b-91ae-364da2661108 - url: 'https://cert-portal.siemens.com/productcert/html/ssa-398330.html' label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e - url: 'https://cert-portal.siemens.com/productcert/html/ssa-412672.html' label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e tags: - nvd epss: 0.03807 epssPercentile: 0.89804 ingestedAt: '2026-10-14T07:21:04.805Z' --- ## Overview 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. ## Affected - `openssh <= 7.9` - `winscp <= 5.13` - `ubuntu_linux = 14.04` - `ubuntu_linux = 16.04` - `ubuntu_linux = 18.04` - `ubuntu_linux = 18.10` - `debian_linux = 8.0` - `debian_linux = 9.0` - `element_software` - `ontap_select_deploy` - `storage_automation_store` - `fedora = 30` - `enterprise_linux = 8.0` - `enterprise_linux_eus = 8.1` - `enterprise_linux_eus = 8.2` - `enterprise_linux_eus = 8.4` - `enterprise_linux_eus = 8.6` - `enterprise_linux_server_aus = 8.2` - `enterprise_linux_server_aus = 8.4` - `enterprise_linux_server_aus = 8.6` - `enterprise_linux_server_tus = 8.2` - `enterprise_linux_server_tus = 8.4` - `enterprise_linux_server_tus = 8.6` - `scalance_x204rna_firmware < 3.2.7` - `scalance_x204rna_eec_firmware < 3.2.7` - `m10-1_firmware < xcp2361` - `m10-4_firmware < xcp2361` - `m10-4s_firmware < xcp2361` - `m12-1_firmware < xcp2361` - `m12-2_firmware < xcp2361` - `m12-2s_firmware < xcp2361` - `m10-1_firmware < xcp3070` - `m10-4_firmware < xcp3070` - `m10-4s_firmware < xcp3070` - `m12-1_firmware < xcp3070` - `m12-2_firmware < xcp3070` - `m12-2s_firmware < xcp3070` ## Remediation Upgrade past the affected range: - `scalance_x204rna_firmware 3.2.7` - `scalance_x204rna_eec_firmware 3.2.7` - `m10-1_firmware xcp3070` - `m10-4_firmware xcp3070` - `m10-4s_firmware xcp3070` - `m12-1_firmware xcp3070` - `m12-2_firmware xcp3070` - `m12-2s_firmware xcp3070`