Security update for openssh

SUSE Security Update: Security update for openssh
Announcement ID: SUSE-SU-2019:0941-1
Rating: moderate
References: #1090671 #1115550 #1119183 #1121816 #1121821
Cross-References: CVE-2019-6109 CVE-2019-6111
Affected Products:
  • SUSE Linux Enterprise Server for SAP 12-SP1
  • SUSE Linux Enterprise Server 12-SP1-LTSS
  • SUSE Linux Enterprise Server 12-LTSS

An update that solves two vulnerabilities and has three fixes is now available.

Description:

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).

Patch Instructions:

To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

  • SUSE Linux Enterprise Server for SAP 12-SP1:
    zypper in -t patch SUSE-SLE-SAP-12-SP1-2019-941=1
  • SUSE Linux Enterprise Server 12-SP1-LTSS:
    zypper in -t patch SUSE-SLE-SERVER-12-SP1-2019-941=1
  • SUSE Linux Enterprise Server 12-LTSS:
    zypper in -t patch SUSE-SLE-SERVER-12-2019-941=1

Package List:

  • SUSE Linux Enterprise Server for SAP 12-SP1 (x86_64):
    • openssh-6.6p1-54.32.1
    • openssh-askpass-gnome-6.6p1-54.32.1
    • openssh-askpass-gnome-debuginfo-6.6p1-54.32.1
    • openssh-debuginfo-6.6p1-54.32.1
    • openssh-debugsource-6.6p1-54.32.1
    • openssh-fips-6.6p1-54.32.1
    • openssh-helpers-6.6p1-54.32.1
    • openssh-helpers-debuginfo-6.6p1-54.32.1
  • SUSE Linux Enterprise Server 12-SP1-LTSS (ppc64le s390x x86_64):
    • openssh-6.6p1-54.32.1
    • openssh-askpass-gnome-6.6p1-54.32.1
    • openssh-askpass-gnome-debuginfo-6.6p1-54.32.1
    • openssh-debuginfo-6.6p1-54.32.1
    • openssh-debugsource-6.6p1-54.32.1
    • openssh-fips-6.6p1-54.32.1
    • openssh-helpers-6.6p1-54.32.1
    • openssh-helpers-debuginfo-6.6p1-54.32.1
  • SUSE Linux Enterprise Server 12-LTSS (ppc64le s390x x86_64):
    • openssh-6.6p1-54.32.1
    • openssh-askpass-gnome-6.6p1-54.32.1
    • openssh-askpass-gnome-debuginfo-6.6p1-54.32.1
    • openssh-debuginfo-6.6p1-54.32.1
    • openssh-debugsource-6.6p1-54.32.1
    • openssh-fips-6.6p1-54.32.1
    • openssh-helpers-6.6p1-54.32.1
    • openssh-helpers-debuginfo-6.6p1-54.32.1

References: