Commit 19fdc288 authored by Lev Lamberov's avatar Lev Lamberov

[SECURITY] [DSA 4387-1] openssh security update

parent 9cc1c8e0
<define-tag pagetitle>DSA-4387-1 openssh</define-tag>
<define-tag report_date>2019-2-09</define-tag>
<define-tag secrefs>CVE-2018-20685 CVE-2019-6109 CVE-2019-6111 Bug#793412 Bug#919101</define-tag>
<define-tag packages>openssh</define-tag>
<define-tag isvulnerable>yes</define-tag>
<define-tag fixed>yes</define-tag>
<define-tag fixed-section>no</define-tag>
#use wml::debian::security
</dl>
<define-tag description>security update</define-tag>
<define-tag moreinfo>
<p>Harry Sintonen from F-Secure Corporation discovered multiple vulnerabilities in
OpenSSH, an implementation of the SSH protocol suite. All the vulnerabilities
are in found in the scp client implementing the SCP protocol.</p>
<ul>
<li><a href="https://security-tracker.debian.org/tracker/CVE-2018-20685">CVE-2018-20685</a>
<p>Due to improper directory name validation, the scp client allows servers to
modify permissions of the target directory by using empty or dot directory
name.</p></li>
<li><a href="https://security-tracker.debian.org/tracker/CVE-2019-6109">CVE-2019-6109</a>
<p>Due to missing character encoding in the progress display, the object name
can be used to manipulate the client output, for example to employ ANSI
codes to hide additional files being transferred.</p></li>
<li><a href="https://security-tracker.debian.org/tracker/CVE-2019-6111">CVE-2019-6111</a>
<p>Due to scp client insufficient input validation in path names sent by
server, a malicious server can do arbitrary file overwrites in target
directory. If the recursive (-r) option is provided, the server can also
manipulate subdirectories as well.</p>
<p>The check added in this version can lead to regression if the client and
the server have differences in wildcard expansion rules. If the server is
trusted for that purpose, the check can be disabled with a new -T option to
the scp client.</p></li>
</ul>
<p>For the stable distribution (stretch), these problems have been fixed in
version 1:7.4p1-10+deb9u5.</p>
<p>We recommend that you upgrade your openssh packages.</p>
<p>For the detailed security status of openssh please refer to
its security tracker page at:
<a href="https://security-tracker.debian.org/tracker/openssh">\
https://security-tracker.debian.org/tracker/openssh</a></p>
</define-tag>
# do not modify the following line
#include "$(ENGLISHDIR)/security/2019/dsa-4387.data"
# $Id: $
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