Security update for openssh

Announcement ID: SUSE-SU-2018:2685-1
Rating: moderate
References:
Cross-References:
CVSS scores:
  • CVE-2008-1483 ( SUSE ): 8.2 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
  • CVE-2016-10012 ( NVD ): 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2016-10708 ( SUSE ): 5.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  • CVE-2016-10708 ( NVD ): 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2017-15906 ( SUSE ): 4.3 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
  • CVE-2017-15906 ( NVD ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
  • CVE-2017-15906 ( NVD ): 5.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Affected Products:
  • SUSE Linux Enterprise Server 12
  • SUSE Linux Enterprise Server 12 LTSS 12
  • SUSE Linux Enterprise Server 12 SP1
  • SUSE Linux Enterprise Server 12 SP1 LTSS 12-SP1
  • SUSE Linux Enterprise Server for SAP Applications 12
  • SUSE Linux Enterprise Server for SAP Applications 12 SP1

An update that solves four vulnerabilities and has five security fixes can now be installed.

Description:

This update for openssh provides the following fixes:

Security issues fixed:

  • CVE-2017-15906: Stricter checking of operations in read-only mode in sftp server (bsc#1065000).
  • CVE-2016-10012: Remove pre-auth compression support from the server to prevent possible cryptographic attacks (bsc#1016370).
  • CVE-2008-1483: Refine handling of sockets for X11 forwarding to remove reintroduced CVE-2008-1483 (bsc#1069509).
  • CVE-2016-10708: Prevent DoS due to crashes caused by out-of-sequence NEWKEYS message (bsc#1076957).

Bug fixes:

  • bsc#1017099: Enable case-insensitive hostname matching.
  • bsc#1023275: Add a new switch for printing diagnostic messages in sftp client's batch mode.
  • bsc#1048367: systemd integration to work around various race conditions.
  • bsc#1053972: Remove duplicate KEX method.
  • bsc#1092582: Add missing piece of systemd integration.
  • Remove the limit on the amount of tasks sshd can run.

Patch Instructions:

To install this SUSE 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 Applications 12 SP1
    zypper in -t patch SUSE-SLE-SAP-12-SP1-2018-1876=1
  • SUSE Linux Enterprise Server 12 LTSS 12
    zypper in -t patch SUSE-SLE-SERVER-12-2018-1876=1
  • SUSE Linux Enterprise Server 12 SP1 LTSS 12-SP1
    zypper in -t patch SUSE-SLE-SERVER-12-SP1-2018-1876=1

Package List:

  • SUSE Linux Enterprise Server for SAP Applications 12 SP1 (ppc64le x86_64)
    • openssh-askpass-gnome-6.6p1-54.15.1
    • openssh-6.6p1-54.15.2
    • openssh-askpass-gnome-debuginfo-6.6p1-54.15.1
    • openssh-debuginfo-6.6p1-54.15.2
    • openssh-helpers-debuginfo-6.6p1-54.15.2
    • openssh-debugsource-6.6p1-54.15.2
    • openssh-helpers-6.6p1-54.15.2
    • openssh-fips-6.6p1-54.15.2
  • SUSE Linux Enterprise Server 12 LTSS 12 (ppc64le s390x x86_64)
    • openssh-askpass-gnome-6.6p1-54.15.1
    • openssh-6.6p1-54.15.2
    • openssh-askpass-gnome-debuginfo-6.6p1-54.15.1
    • openssh-debuginfo-6.6p1-54.15.2
    • openssh-helpers-debuginfo-6.6p1-54.15.2
    • openssh-debugsource-6.6p1-54.15.2
    • openssh-helpers-6.6p1-54.15.2
    • openssh-fips-6.6p1-54.15.2
  • SUSE Linux Enterprise Server 12 SP1 LTSS 12-SP1 (ppc64le s390x x86_64)
    • openssh-askpass-gnome-6.6p1-54.15.1
    • openssh-6.6p1-54.15.2
    • openssh-askpass-gnome-debuginfo-6.6p1-54.15.1
    • openssh-debuginfo-6.6p1-54.15.2
    • openssh-helpers-debuginfo-6.6p1-54.15.2
    • openssh-debugsource-6.6p1-54.15.2
    • openssh-helpers-6.6p1-54.15.2
    • openssh-fips-6.6p1-54.15.2

References: