Security update for tigervnc

Announcement ID: SUSE-SU-2017:1093-1
Rating: moderate
References:
Cross-References:
CVSS scores:
  • CVE-2017-7392 ( SUSE ): 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2017-7392 ( NVD ): 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2017-7393 ( SUSE ): 6.5 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • CVE-2017-7393 ( NVD ): 8.8 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2017-7394 ( SUSE ): 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2017-7394 ( NVD ): 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2017-7395 ( SUSE ): 6.5 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • CVE-2017-7395 ( NVD ): 6.5 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • CVE-2017-7396 ( SUSE ): 5.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  • CVE-2017-7396 ( NVD ): 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products:
  • SUSE Linux Enterprise Desktop 12 SP1
  • SUSE Linux Enterprise Server 12 SP1
  • SUSE Linux Enterprise Server for SAP Applications 12 SP1

An update that solves five vulnerabilities can now be installed.

Description:

This update for tigervnc provides the several fixes.

These security issues were fixed:

  • CVE-2017-7392, CVE-2017-7396: Client can cause leak in VNC server (bsc#1031886)
  • CVE-2017-7395: Authenticated VNC client can crash VNC server (bsc#1031877)
  • CVE-2017-7394: Client can crash or block VNC server (bsc#1031879)
  • CVE-2017-7393: Authenticated client can cause double free in VNC server (bsc#1031875)
  • Prevent buffer overflow in VNC client, allowing for crashing the client (bnc#1032880)

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 Desktop 12 SP1
    zypper in -t patch SUSE-SLE-DESKTOP-12-SP1-2017-636=1
  • SUSE Linux Enterprise Server for SAP Applications 12 SP1
    zypper in -t patch SUSE-SLE-SERVER-12-SP1-2017-636=1
  • SUSE Linux Enterprise Server 12 SP1
    zypper in -t patch SUSE-SLE-SERVER-12-SP1-2017-636=1

Package List:

  • SUSE Linux Enterprise Desktop 12 SP1 (x86_64)
    • tigervnc-debugsource-1.4.3-24.1
    • tigervnc-1.4.3-24.1
    • xorg-x11-Xvnc-1.4.3-24.1
    • tigervnc-debuginfo-1.4.3-24.1
    • xorg-x11-Xvnc-debuginfo-1.4.3-24.1
  • SUSE Linux Enterprise Server for SAP Applications 12 SP1 (ppc64le x86_64)
    • tigervnc-debugsource-1.4.3-24.1
    • tigervnc-1.4.3-24.1
    • xorg-x11-Xvnc-1.4.3-24.1
    • tigervnc-debuginfo-1.4.3-24.1
    • xorg-x11-Xvnc-debuginfo-1.4.3-24.1
  • SUSE Linux Enterprise Server 12 SP1 (ppc64le s390x x86_64)
    • tigervnc-debugsource-1.4.3-24.1
    • tigervnc-1.4.3-24.1
    • xorg-x11-Xvnc-1.4.3-24.1
    • tigervnc-debuginfo-1.4.3-24.1
    • xorg-x11-Xvnc-debuginfo-1.4.3-24.1

References: