| Name | CVE-2019-6109 |
| Description | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-1728-1, DSA-4387-1, ELA-94-1 |
| Debian Bugs | 793412 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| openssh (PTS) | jessie, jessie (lts) | 1:6.7p1-5+deb8u10 | fixed |
| stretch (security) | 1:7.4p1-10+deb9u6 | fixed | |
| stretch (lts), stretch | 1:7.4p1-10+deb9u9 | fixed | |
| buster (security), buster, buster (lts) | 1:7.9p1-10+deb10u4 | fixed | |
| bullseye (security), bullseye | 1:8.4p1-5+deb11u3 | fixed | |
| bookworm (security), bookworm | 1:9.2p1-2+deb12u3 | fixed | |
| sid, trixie | 1:9.9p1-3 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| openssh | source | wheezy | 1:6.0p1-4+deb7u11 | ELA-94-1 | ||
| openssh | source | jessie | 1:6.7p1-5+deb8u8 | DLA-1728-1 | ||
| openssh | source | stretch | 1:7.4p1-10+deb9u5 | DSA-4387-1 | ||
| openssh | source | (unstable) | 1:7.9p1-6 | 793412 |
https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txt
https://bugzilla.mindrot.org/show_bug.cgi?id=2434
Patch: https://bugzilla.mindrot.org/attachment.cgi?id=3228
Fixed by: https://github.com/openssh/openssh-portable/commit/8976f1c4b2721c26e878151f52bdf346dfe2d54c
possibly additionally needed: https://github.com/openssh/openssh-portable/commit/bdc6c63c80b55bcbaa66b5fde31c1cb1d09a41eb