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SUSE-SU-2019:0496-1

Опубликовано: 26 фев. 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)

Список пакетов

Image SLES15-Azure-BYOS
openssh-7.6p1-9.23.1
Image SLES15-EC2-CHOST-HVM-BYOS
openssh-7.6p1-9.23.1
Image SLES15-EC2-HVM-BYOS
openssh-7.6p1-9.23.1
Image SLES15-GCE-BYOS
openssh-7.6p1-9.23.1
Image SLES15-OCI-BYOS
openssh-7.6p1-9.23.1
Image SLES15-SAP-Azure
openssh-7.6p1-9.23.1
Image SLES15-SAP-Azure-BYOS
openssh-7.6p1-9.23.1
Image SLES15-SAP-Azure-LI-BYOS-Production
openssh-7.6p1-9.23.1
Image SLES15-SAP-Azure-VLI-BYOS-Production
openssh-7.6p1-9.23.1
Image SLES15-SAP-EC2-HVM
openssh-7.6p1-9.23.1
Image SLES15-SAP-EC2-HVM-BYOS
openssh-7.6p1-9.23.1
Image SLES15-SAP-GCE
openssh-7.6p1-9.23.1
Image SLES15-SAP-GCE-BYOS
openssh-7.6p1-9.23.1
Image SLES15-SAP-OCI-BYOS
openssh-7.6p1-9.23.1
SUSE Linux Enterprise Module for Basesystem 15
openssh-7.6p1-9.23.1
openssh-helpers-7.6p1-9.23.1
SUSE Linux Enterprise Module for Desktop Applications 15
openssh-askpass-gnome-7.6p1-9.23.1
SUSE Linux Enterprise Module for Server Applications 15
openssh-fips-7.6p1-9.23.1

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
Image SLES15-Azure-BYOS:openssh-7.6p1-9.23.1
Image SLES15-EC2-CHOST-HVM-BYOS:openssh-7.6p1-9.23.1
Image SLES15-EC2-HVM-BYOS:openssh-7.6p1-9.23.1
Image SLES15-GCE-BYOS:openssh-7.6p1-9.23.1
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
Image SLES15-Azure-BYOS:openssh-7.6p1-9.23.1
Image SLES15-EC2-CHOST-HVM-BYOS:openssh-7.6p1-9.23.1
Image SLES15-EC2-HVM-BYOS:openssh-7.6p1-9.23.1
Image SLES15-GCE-BYOS:openssh-7.6p1-9.23.1
Ссылки