Security update for tightvnc

SUSE Security Update: Security update for tightvnc
Announcement ID: SUSE-SU-2019:14235-1
Rating: important
References: #1155442 #1155452 #1155472 #1155476
Cross-References: CVE-2019-15678 CVE-2019-15679 CVE-2019-15680 CVE-2019-8287
Affected Products:
  • SUSE Linux Enterprise Server 11-SP4-LTSS
  • SUSE Linux Enterprise Point of Sale 11-SP3
  • SUSE Linux Enterprise Debuginfo 11-SP4
  • SUSE Linux Enterprise Debuginfo 11-SP3

An update that fixes four vulnerabilities is now available.

Description:

This update for tightvnc fixes the following issues:

  • CVE-2019-15679: Fixed a heap buffer overflow in InitialiseRFBConnection which might lead to code execution (bsc#1155476).
  • CVE-2019-8287: Fixed a global buffer overflow in HandleCoRREBBPmay which might lead to code execution (bsc#1155472).
  • CVE-2019-15680: Fixed a null pointer dereference in HandleZlibBPP which could have led to denial of service (bsc#1155452).
  • CVE-2019-15678: Fixed a heap buffer overflow in rfbServerCutText handler (bsc#1155442).

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 11-SP4-LTSS:
    zypper in -t patch slessp4-tightvnc-14235=1
  • SUSE Linux Enterprise Point of Sale 11-SP3:
    zypper in -t patch sleposp3-tightvnc-14235=1
  • SUSE Linux Enterprise Debuginfo 11-SP4:
    zypper in -t patch dbgsp4-tightvnc-14235=1
  • SUSE Linux Enterprise Debuginfo 11-SP3:
    zypper in -t patch dbgsp3-tightvnc-14235=1

Package List:

  • SUSE Linux Enterprise Server 11-SP4-LTSS (i586 ppc64 s390x x86_64):
    • tightvnc-1.3.9-81.15.3.1
  • SUSE Linux Enterprise Point of Sale 11-SP3 (i586):
    • tightvnc-1.3.9-81.15.3.1
  • SUSE Linux Enterprise Debuginfo 11-SP4 (i586 ppc64 s390x x86_64):
    • tightvnc-debuginfo-1.3.9-81.15.3.1
    • tightvnc-debugsource-1.3.9-81.15.3.1
  • SUSE Linux Enterprise Debuginfo 11-SP3 (i586 s390x x86_64):
    • tightvnc-debuginfo-1.3.9-81.15.3.1
    • tightvnc-debugsource-1.3.9-81.15.3.1

References: