Upstream information

CVE-2018-7225 at MITRE

Description

An issue was discovered in LibVNCServer through 0.9.11. rfbProcessClientNormalMessage() in rfbserver.c does not sanitize msg.cct.length, leading to access to uninitialized and potentially sensitive data or possibly unspecified other impact (e.g., an integer overflow) via specially crafted VNC packets.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having important severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 7.5
Vector AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 9.8 7.1
Vector AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
Access Vector Network Network
Access Complexity Low Low
Privileges Required None Low
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact High Low
Integrity Impact High None
Availability Impact High High
SUSE Bugzilla entries: 1081493 [IN_PROGRESS], 1090647 [IN_PROGRESS]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise Server 11 SP4
  • LibVNCServer >= 0.9.1-160.3.1
Patchnames:
slessp4-LibVNCServer-13550
SUSE Linux Enterprise Server 12 SP2
  • LibVNCServer >= 0.9.9-17.5.1
  • libvncclient0 >= 0.9.9-17.5.1
  • libvncserver0 >= 0.9.9-17.5.1
Patchnames:
SUSE-SLE-SERVER-12-SP2-2018-554
SUSE Linux Enterprise Server 12 SP3
  • LibVNCServer >= 0.9.9-17.5.1
  • libvncclient0 >= 0.9.9-17.5.1
  • libvncserver0 >= 0.9.9-17.5.1
Patchnames:
SUSE-SLE-SERVER-12-SP3-2018-554
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2
  • LibVNCServer >= 0.9.9-17.5.1
  • libvncclient0 >= 0.9.9-17.5.1
  • libvncserver0 >= 0.9.9-17.5.1
Patchnames:
SUSE-SLE-RPI-12-SP2-2018-554
SUSE Linux Enterprise Software Development Kit 11 SP4
  • LibVNCServer >= 0.9.1-160.3.1
  • LibVNCServer-devel >= 0.9.1-160.3.1
Patchnames:
sdksp4-LibVNCServer-13550
SUSE Linux Enterprise Software Development Kit 12 SP2
  • LibVNCServer >= 0.9.9-17.5.1
  • LibVNCServer-devel >= 0.9.9-17.5.1
Patchnames:
SUSE-SLE-SDK-12-SP2-2018-554
SUSE Linux Enterprise Software Development Kit 12 SP3
  • LibVNCServer >= 0.9.9-17.5.1
  • LibVNCServer-devel >= 0.9.9-17.5.1
Patchnames:
SUSE-SLE-SDK-12-SP3-2018-554
SUSE Linux Enterprise Workstation Extension 15
  • libvncclient0 >= 0.9.10-2.21
Patchnames:
SUSE Linux Enterprise Workstation Extension 15 GA libvncclient0
openSUSE Leap 15.0
  • libvncclient0 >= 0.9.10-lp150.2.3
Patchnames:
openSUSE Leap 15.0 GA libvncclient0
openSUSE Leap 42.3
  • LibVNCServer >= 0.9.9-16.3.1
  • LibVNCServer-debugsource >= 0.9.9-16.3.1
  • LibVNCServer-devel >= 0.9.9-16.3.1
  • libvncclient0 >= 0.9.9-16.3.1
  • libvncclient0-debuginfo >= 0.9.9-16.3.1
  • libvncserver0 >= 0.9.9-16.3.1
  • libvncserver0-debuginfo >= 0.9.9-16.3.1
  • linuxvnc >= 0.9.9-16.3.1
  • linuxvnc-debuginfo >= 0.9.9-16.3.1
Patchnames:
openSUSE-2018-326


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
SUSE Linux Enterprise Desktop 12 SP2 tigervnc Unsupported
SUSE Linux Enterprise Desktop 12 SP3 tigervnc Not affected
SUSE Linux Enterprise SDK 11 SP4 LibVNCServer Released
SUSE Linux Enterprise SDK 12 SP2 LibVNCServer Released
SUSE Linux Enterprise SDK 12 SP3 LibVNCServer Released
SUSE Linux Enterprise Server 11 SP3 LTSS LibVNCServer Affected
SUSE Linux Enterprise Server 11 SP3 LTSS tightvnc Not affected
SUSE Linux Enterprise Server 11 SP4 LibVNCServer Released
SUSE Linux Enterprise Server 11 SP4 tightvnc Not affected
SUSE Linux Enterprise Server 12 GA LTSS LibVNCServer Affected
SUSE Linux Enterprise Server 12 SP1 LTSS LibVNCServer Affected
SUSE Linux Enterprise Server 12 SP2 LibVNCServer Released
SUSE Linux Enterprise Server 12 SP2 tigervnc Unsupported
SUSE Linux Enterprise Server 12 SP3 LibVNCServer Released
SUSE Linux Enterprise Server 12 SP3 tigervnc Not affected