Security update for openssh

SUSE Security Update: Security update for openssh
Announcement ID: SUSE-SU-2017:0264-1
Rating: moderate
References: #1005480 #1005893 #1006221 #1016366 #1016368 #1016369 #1016370
Affected Products:
  • SUSE Linux Enterprise Server for Raspberry Pi 12-SP2
  • SUSE Linux Enterprise Server 12-SP2
  • SUSE Linux Enterprise Desktop 12-SP2
    		•

    An update that solves 5 vulnerabilities and has two fixes is now available.

    Description:


    This update for openssh fixes several issues.

    These security issues were fixed:

    - CVE-2016-8858: The kex_input_kexinit function in kex.c allowed remote
    attackers to cause a denial of service (memory consumption) by sending
    many duplicate KEXINIT requests (bsc#1005480).
    - CVE-2016-10012: The shared memory manager (associated with
    pre-authentication compression) did not ensure that a bounds check is
    enforced by all compilers, which might allowed local users to gain
    privileges by leveraging access to a sandboxed privilege-separation
    process, related to the m_zback and m_zlib data structures (bsc#1016370).
    - CVE-2016-10009: Untrusted search path vulnerability in ssh-agent.c
    allowed remote attackers to execute arbitrary local PKCS#11 modules by
    leveraging control over a forwarded agent-socket (bsc#1016366).
    - CVE-2016-10010: When forwarding unix domain sockets with privilege
    separation disabled, the resulting sockets have be created as 'root'
    instead of the authenticated user. Forwarding unix domain sockets
    without privilege separation enabled is now rejected.
    - CVE-2016-10011: authfile.c in sshd did not properly consider the effects
    of realloc on buffer contents, which might allowed local users to obtain
    sensitive private-key information by leveraging access to a
    privilege-separated child process (bsc#1016369).

    These non-security issues were fixed:

    - Adjusted suggested command for removing conflicting server keys from the
    known_hosts file (bsc#1006221)
    - Properly verify CIDR masks in configuration (bsc#1005893)

    Patch Instructions:

    To install this SUSE Security Update use YaST online_update.
    Alternatively you can run the command listed for your product:

    • SUSE Linux Enterprise Server for Raspberry Pi 12-SP2:
      zypper in -t patch SUSE-SLE-RPI-12-SP2-2017-138=1
    • SUSE Linux Enterprise Server 12-SP2:
      zypper in -t patch SUSE-SLE-SERVER-12-SP2-2017-138=1
    • SUSE Linux Enterprise Desktop 12-SP2:
      zypper in -t patch SUSE-SLE-DESKTOP-12-SP2-2017-138=1

    To bring your system up-to-date, use "zypper patch".

    Package List:

    • SUSE Linux Enterprise Server for Raspberry Pi 12-SP2 (aarch64):
      • openssh-7.2p2-66.1
      • openssh-askpass-gnome-7.2p2-66.3
      • openssh-askpass-gnome-debuginfo-7.2p2-66.3
      • openssh-debuginfo-7.2p2-66.1
      • openssh-debugsource-7.2p2-66.1
      • openssh-fips-7.2p2-66.1
      • openssh-helpers-7.2p2-66.1
      • openssh-helpers-debuginfo-7.2p2-66.1
    • SUSE Linux Enterprise Server 12-SP2 (aarch64 ppc64le x86_64):
      • openssh-7.2p2-66.1
      • openssh-askpass-gnome-7.2p2-66.3
      • openssh-askpass-gnome-debuginfo-7.2p2-66.3
      • openssh-debuginfo-7.2p2-66.1
      • openssh-debugsource-7.2p2-66.1
      • openssh-fips-7.2p2-66.1
      • openssh-helpers-7.2p2-66.1
      • openssh-helpers-debuginfo-7.2p2-66.1
    • SUSE Linux Enterprise Desktop 12-SP2 (x86_64):
      • openssh-7.2p2-66.1
      • openssh-askpass-gnome-7.2p2-66.3
      • openssh-askpass-gnome-debuginfo-7.2p2-66.3
      • openssh-debuginfo-7.2p2-66.1
      • openssh-debugsource-7.2p2-66.1
      • openssh-helpers-7.2p2-66.1
      • openssh-helpers-debuginfo-7.2p2-66.1

    References: