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openSUSE-SU-2019:0307-1

Опубликовано: 23 мар. 2019
Источник: suse-cvrf

Описание

Security update for openssh

This update for openssh fixes the following issues:

Security vulnerabilities addressed:

  • CVE-2019-6109: Fixed an character encoding issue in the progress display of the scp client that could be used to manipulate client output, allowing for spoofing during file transfers (bsc#1121816)
  • CVE-2019-6111: Properly validate object names received by the scp client to prevent arbitrary file overwrites when interacting with a malicious SSH server (bsc#1121821)

Other bug fixes and changes:

  • Handle brace expansion in scp when checking that filenames sent by the server side match what the client requested (bsc#1125687)

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

Список пакетов

openSUSE Leap 15.0
openssh-7.6p1-lp150.8.15.2
openssh-askpass-gnome-7.6p1-lp150.8.15.1
openssh-cavs-7.6p1-lp150.8.15.2
openssh-fips-7.6p1-lp150.8.15.2
openssh-helpers-7.6p1-lp150.8.15.2

Ссылки

Описание

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.

Затронутые продукты
openSUSE Leap 15.0:openssh-7.6p1-lp150.8.15.2
openSUSE Leap 15.0:openssh-askpass-gnome-7.6p1-lp150.8.15.1
openSUSE Leap 15.0:openssh-cavs-7.6p1-lp150.8.15.2
openSUSE Leap 15.0:openssh-fips-7.6p1-lp150.8.15.2
Ссылки

Описание

An issue was discovered in OpenSSH 7.9. Due to the scp implementation being derived from 1983 rcp, the server chooses which files/directories are sent to the client. However, the scp client only performs cursory validation of the object name returned (only directory traversal attacks are prevented). A malicious scp server (or Man-in-The-Middle attacker) can overwrite arbitrary files in the scp client target directory. If recursive operation (-r) is performed, the server can manipulate subdirectories as well (for example, to overwrite the .ssh/authorized_keys file).

Затронутые продукты
openSUSE Leap 15.0:openssh-7.6p1-lp150.8.15.2
openSUSE Leap 15.0:openssh-askpass-gnome-7.6p1-lp150.8.15.1
openSUSE Leap 15.0:openssh-cavs-7.6p1-lp150.8.15.2
openSUSE Leap 15.0:openssh-fips-7.6p1-lp150.8.15.2
Ссылки