Security update for LibVNCServer

SUSE Security Update: Security update for LibVNCServer
Announcement ID: SUSE-SU-2018:0830-1
Rating: important
References: #1017711 #1017712 #1081493
Affected Products:
  • SUSE Linux Enterprise Software Development Kit 12-SP3
  • SUSE Linux Enterprise Software Development Kit 12-SP2
  • SUSE Linux Enterprise Server for Raspberry Pi 12-SP2
  • SUSE Linux Enterprise Server 12-SP3
  • SUSE Linux Enterprise Server 12-SP2

  • An update that fixes three vulnerabilities is now available.

    Description:


    LibVNCServer was updated to fix two security issues.

    These security issues were fixed:

    - CVE-2018-7225: Missing input sanitization inside rfbserver.c
    rfbProcessClientNormalMessage() (bsc#1081493).
    - CVE-2016-9942: Heap-based buffer overflow in ultra.c allowed remote
    servers to cause a denial of service (application crash) or possibly
    execute arbitrary code via a crafted FramebufferUpdate message with the
    Ultra type tile, such that the LZO payload decompressed length exceeds
    what is specified by the tile dimensions (bsc#1017712).
    - CVE-2016-9941: Heap-based buffer overflow in rfbproto.c allowed remote
    servers to cause a denial of service (application crash) or possibly
    execute arbitrary code via a crafted FramebufferUpdate message
    containing a subrectangle outside of the client drawing area
    (bsc#1017711).

    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 Software Development Kit 12-SP3:
      zypper in -t patch SUSE-SLE-SDK-12-SP3-2018-554=1
    • SUSE Linux Enterprise Software Development Kit 12-SP2:
      zypper in -t patch SUSE-SLE-SDK-12-SP2-2018-554=1
    • SUSE Linux Enterprise Server for Raspberry Pi 12-SP2:
      zypper in -t patch SUSE-SLE-RPI-12-SP2-2018-554=1
    • SUSE Linux Enterprise Server 12-SP3:
      zypper in -t patch SUSE-SLE-SERVER-12-SP3-2018-554=1
    • SUSE Linux Enterprise Server 12-SP2:
      zypper in -t patch SUSE-SLE-SERVER-12-SP2-2018-554=1

    Package List:

    • SUSE Linux Enterprise Software Development Kit 12-SP3 (aarch64 ppc64le s390x x86_64):
      • LibVNCServer-debugsource-0.9.9-17.5.1
      • LibVNCServer-devel-0.9.9-17.5.1
    • SUSE Linux Enterprise Software Development Kit 12-SP2 (aarch64 ppc64le s390x x86_64):
      • LibVNCServer-debugsource-0.9.9-17.5.1
      • LibVNCServer-devel-0.9.9-17.5.1
    • SUSE Linux Enterprise Server for Raspberry Pi 12-SP2 (aarch64):
      • LibVNCServer-debugsource-0.9.9-17.5.1
      • libvncclient0-0.9.9-17.5.1
      • libvncclient0-debuginfo-0.9.9-17.5.1
      • libvncserver0-0.9.9-17.5.1
      • libvncserver0-debuginfo-0.9.9-17.5.1
    • SUSE Linux Enterprise Server 12-SP3 (aarch64 ppc64le s390x x86_64):
      • LibVNCServer-debugsource-0.9.9-17.5.1
      • libvncclient0-0.9.9-17.5.1
      • libvncclient0-debuginfo-0.9.9-17.5.1
      • libvncserver0-0.9.9-17.5.1
      • libvncserver0-debuginfo-0.9.9-17.5.1
    • SUSE Linux Enterprise Server 12-SP2 (aarch64 ppc64le s390x x86_64):
      • LibVNCServer-debugsource-0.9.9-17.5.1
      • libvncclient0-0.9.9-17.5.1
      • libvncclient0-debuginfo-0.9.9-17.5.1
      • libvncserver0-0.9.9-17.5.1
      • libvncserver0-debuginfo-0.9.9-17.5.1

    References: