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SUSE-SU-2019:14030-1

Опубликовано: 25 апр. 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 issues fixed:

  • Fixed two race conditions in sshd relating to SIGHUP (bsc#1119183).
  • Returned proper reason for port forwarding failures (bsc#1090671).
  • Fixed SSHD termination of multichannel sessions with non-root users (bsc#1115550).

Список пакетов

SUSE Linux Enterprise Server 11 SP4-LTSS
openssh-6.6p1-36.20.1
openssh-askpass-gnome-6.6p1-36.20.1
openssh-fips-6.6p1-36.20.1
openssh-helpers-6.6p1-36.20.1

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
SUSE Linux Enterprise Server 11 SP4-LTSS:openssh-6.6p1-36.20.1
SUSE Linux Enterprise Server 11 SP4-LTSS:openssh-askpass-gnome-6.6p1-36.20.1
SUSE Linux Enterprise Server 11 SP4-LTSS:openssh-fips-6.6p1-36.20.1
SUSE Linux Enterprise Server 11 SP4-LTSS:openssh-helpers-6.6p1-36.20.1
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
SUSE Linux Enterprise Server 11 SP4-LTSS:openssh-6.6p1-36.20.1
SUSE Linux Enterprise Server 11 SP4-LTSS:openssh-askpass-gnome-6.6p1-36.20.1
SUSE Linux Enterprise Server 11 SP4-LTSS:openssh-fips-6.6p1-36.20.1
SUSE Linux Enterprise Server 11 SP4-LTSS:openssh-helpers-6.6p1-36.20.1
Ссылки
Уязвимость SUSE-SU-2019:14030-1