Security update for tigervnc SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2020:0112-1 Final 1 1 2020-01-16T09:11:01Z current 2020-01-16T09:11:01Z 2020-01-16T09:11:01Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for tigervnc This update for tigervnc fixes the following issues: - CVE-2019-15691: Fixed a use-after-return due to incorrect usage of stack memory in ZRLEDecoder (bsc#1159856). - CVE-2019-15692: Fixed a heap-based buffer overflow in CopyRectDecode (bsc#1160250). - CVE-2019-15693: Fixed a heap-based buffer overflow in TightDecoder::FilterGradient (bsc#1159858). - CVE-2019-15694: Fixed a heap-based buffer overflow, caused by improper error handling in processing MemOutStream (bsc#1160251). - CVE-2019-15695: Fixed a stack-based buffer overflow, which could be triggered from CMsgReader::readSetCursor (bsc#1159860). The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). Image SLES15-SAP-Azure-2020-112,Image SLES15-SAP-Azure-BYOS-2020-112,Image SLES15-SAP-Azure-LI-BYOS-Production-2020-112,Image SLES15-SAP-Azure-VLI-BYOS-Production-2020-112,Image SLES15-SAP-EC2-HVM-2020-112,Image SLES15-SAP-EC2-HVM-BYOS-2020-112,Image SLES15-SAP-GCE-2020-112,Image SLES15-SAP-GCE-BYOS-2020-112,Image SLES15-SAP-OCI-BYOS-2020-112,SUSE-2020-112,SUSE-SLE-Module-Basesystem-15-2020-112,SUSE-SLE-Module-Desktop-Applications-15-2020-112,SUSE-SLE-Module-Development-Tools-OBS-15-2020-112 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2020/suse-su-20200112-1/ Link for SUSE-SU-2020:0112-1 https://lists.suse.com/pipermail/sle-security-updates/2020-January/006359.html E-Mail link for SUSE-SU-2020:0112-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1159856 SUSE Bug 1159856 https://bugzilla.suse.com/1159858 SUSE Bug 1159858 https://bugzilla.suse.com/1159860 SUSE Bug 1159860 https://bugzilla.suse.com/1160250 SUSE Bug 1160250 https://bugzilla.suse.com/1160251 SUSE Bug 1160251 https://www.suse.com/security/cve/CVE-2019-15691/ SUSE CVE CVE-2019-15691 page https://www.suse.com/security/cve/CVE-2019-15692/ SUSE CVE CVE-2019-15692 page https://www.suse.com/security/cve/CVE-2019-15693/ SUSE CVE CVE-2019-15693 page https://www.suse.com/security/cve/CVE-2019-15694/ SUSE CVE CVE-2019-15694 page https://www.suse.com/security/cve/CVE-2019-15695/ SUSE CVE CVE-2019-15695 page Image SLES15-SAP-Azure Image SLES15-SAP-Azure-BYOS Image SLES15-SAP-Azure-LI-BYOS-Production Image SLES15-SAP-Azure-VLI-BYOS-Production Image SLES15-SAP-EC2-HVM Image SLES15-SAP-EC2-HVM-BYOS Image SLES15-SAP-GCE Image SLES15-SAP-GCE-BYOS Image SLES15-SAP-OCI-BYOS SUSE Linux Enterprise Module for Basesystem 15 SUSE Linux Enterprise Module for Desktop Applications 15 libXvnc1-1.8.0-13.11.1 xorg-x11-Xvnc-1.8.0-13.11.1 libXvnc-devel-1.8.0-13.11.1 tigervnc-1.8.0-13.11.1 tigervnc-x11vnc-1.8.0-13.11.1 xorg-x11-Xvnc-java-1.8.0-13.11.1 xorg-x11-Xvnc-novnc-1.8.0-13.11.1 libXvnc1-1.8.0-13.11.1 as a component of Image SLES15-SAP-Azure xorg-x11-Xvnc-1.8.0-13.11.1 as a component of Image SLES15-SAP-Azure libXvnc1-1.8.0-13.11.1 as a component of Image SLES15-SAP-Azure-BYOS xorg-x11-Xvnc-1.8.0-13.11.1 as a component of Image SLES15-SAP-Azure-BYOS libXvnc1-1.8.0-13.11.1 as a component of Image SLES15-SAP-Azure-LI-BYOS-Production xorg-x11-Xvnc-1.8.0-13.11.1 as a component of Image SLES15-SAP-Azure-LI-BYOS-Production libXvnc1-1.8.0-13.11.1 as a component of Image SLES15-SAP-Azure-VLI-BYOS-Production xorg-x11-Xvnc-1.8.0-13.11.1 as a component of Image SLES15-SAP-Azure-VLI-BYOS-Production libXvnc1-1.8.0-13.11.1 as a component of Image SLES15-SAP-EC2-HVM xorg-x11-Xvnc-1.8.0-13.11.1 as a component of Image SLES15-SAP-EC2-HVM libXvnc1-1.8.0-13.11.1 as a component of Image SLES15-SAP-EC2-HVM-BYOS xorg-x11-Xvnc-1.8.0-13.11.1 as a component of Image SLES15-SAP-EC2-HVM-BYOS libXvnc1-1.8.0-13.11.1 as a component of Image SLES15-SAP-GCE xorg-x11-Xvnc-1.8.0-13.11.1 as a component of Image SLES15-SAP-GCE libXvnc1-1.8.0-13.11.1 as a component of Image SLES15-SAP-GCE-BYOS xorg-x11-Xvnc-1.8.0-13.11.1 as a component of Image SLES15-SAP-GCE-BYOS libXvnc1-1.8.0-13.11.1 as a component of Image SLES15-SAP-OCI-BYOS xorg-x11-Xvnc-1.8.0-13.11.1 as a component of Image SLES15-SAP-OCI-BYOS libXvnc1-1.8.0-13.11.1 as a component of SUSE Linux Enterprise Module for Basesystem 15 tigervnc-1.8.0-13.11.1 as a component of SUSE Linux Enterprise Module for Basesystem 15 xorg-x11-Xvnc-1.8.0-13.11.1 as a component of SUSE Linux Enterprise Module for Basesystem 15 xorg-x11-Xvnc-novnc-1.8.0-13.11.1 as a component of SUSE Linux Enterprise Module for Basesystem 15 libXvnc-devel-1.8.0-13.11.1 as a component of SUSE Linux Enterprise Module for Desktop Applications 15 TigerVNC version prior to 1.10.1 is vulnerable to stack use-after-return, which occurs due to incorrect usage of stack memory in ZRLEDecoder. If decoding routine would throw an exception, ZRLEDecoder may try to access stack variable, which has been already freed during the process of stack unwinding. Exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity. CVE-2019-15691 Image SLES15-SAP-Azure-BYOS:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-Azure-BYOS:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-Azure-LI-BYOS-Production:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-Azure-LI-BYOS-Production:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-Azure-VLI-BYOS-Production:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-Azure-VLI-BYOS-Production:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-Azure:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-Azure:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-EC2-HVM-BYOS:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-EC2-HVM-BYOS:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-EC2-HVM:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-EC2-HVM:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-GCE-BYOS:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-GCE-BYOS:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-GCE:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-GCE:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-OCI-BYOS:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-OCI-BYOS:xorg-x11-Xvnc-1.8.0-13.11.1 SUSE Linux Enterprise Module for Basesystem 15:libXvnc1-1.8.0-13.11.1 SUSE Linux Enterprise Module for Basesystem 15:tigervnc-1.8.0-13.11.1 SUSE Linux Enterprise Module for Basesystem 15:xorg-x11-Xvnc-1.8.0-13.11.1 SUSE Linux Enterprise Module for Basesystem 15:xorg-x11-Xvnc-novnc-1.8.0-13.11.1 SUSE Linux Enterprise Module for Desktop Applications 15:libXvnc-devel-1.8.0-13.11.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2020/suse-su-20200112-1/ https://www.suse.com/security/cve/CVE-2019-15691.html CVE-2019-15691 https://bugzilla.suse.com/1159856 SUSE Bug 1159856 TigerVNC version prior to 1.10.1 is vulnerable to heap buffer overflow. Vulnerability could be triggered from CopyRectDecoder due to incorrect value checks. Exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity. CVE-2019-15692 Image SLES15-SAP-Azure-BYOS:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-Azure-BYOS:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-Azure-LI-BYOS-Production:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-Azure-LI-BYOS-Production:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-Azure-VLI-BYOS-Production:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-Azure-VLI-BYOS-Production:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-Azure:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-Azure:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-EC2-HVM-BYOS:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-EC2-HVM-BYOS:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-EC2-HVM:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-EC2-HVM:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-GCE-BYOS:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-GCE-BYOS:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-GCE:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-GCE:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-OCI-BYOS:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-OCI-BYOS:xorg-x11-Xvnc-1.8.0-13.11.1 SUSE Linux Enterprise Module for Basesystem 15:libXvnc1-1.8.0-13.11.1 SUSE Linux Enterprise Module for Basesystem 15:tigervnc-1.8.0-13.11.1 SUSE Linux Enterprise Module for Basesystem 15:xorg-x11-Xvnc-1.8.0-13.11.1 SUSE Linux Enterprise Module for Basesystem 15:xorg-x11-Xvnc-novnc-1.8.0-13.11.1 SUSE Linux Enterprise Module for Desktop Applications 15:libXvnc-devel-1.8.0-13.11.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2020/suse-su-20200112-1/ https://www.suse.com/security/cve/CVE-2019-15692.html CVE-2019-15692 https://bugzilla.suse.com/1160250 SUSE Bug 1160250 TigerVNC version prior to 1.10.1 is vulnerable to heap buffer overflow, which occurs in TightDecoder::FilterGradient. Exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity. CVE-2019-15693 Image SLES15-SAP-Azure-BYOS:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-Azure-BYOS:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-Azure-LI-BYOS-Production:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-Azure-LI-BYOS-Production:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-Azure-VLI-BYOS-Production:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-Azure-VLI-BYOS-Production:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-Azure:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-Azure:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-EC2-HVM-BYOS:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-EC2-HVM-BYOS:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-EC2-HVM:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-EC2-HVM:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-GCE-BYOS:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-GCE-BYOS:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-GCE:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-GCE:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-OCI-BYOS:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-OCI-BYOS:xorg-x11-Xvnc-1.8.0-13.11.1 SUSE Linux Enterprise Module for Basesystem 15:libXvnc1-1.8.0-13.11.1 SUSE Linux Enterprise Module for Basesystem 15:tigervnc-1.8.0-13.11.1 SUSE Linux Enterprise Module for Basesystem 15:xorg-x11-Xvnc-1.8.0-13.11.1 SUSE Linux Enterprise Module for Basesystem 15:xorg-x11-Xvnc-novnc-1.8.0-13.11.1 SUSE Linux Enterprise Module for Desktop Applications 15:libXvnc-devel-1.8.0-13.11.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2020/suse-su-20200112-1/ https://www.suse.com/security/cve/CVE-2019-15693.html CVE-2019-15693 https://bugzilla.suse.com/1159858 SUSE Bug 1159858 TigerVNC version prior to 1.10.1 is vulnerable to heap buffer overflow, which could be triggered from DecodeManager::decodeRect. Vulnerability occurs due to the signdness error in processing MemOutStream. Exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity. CVE-2019-15694 Image SLES15-SAP-Azure-BYOS:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-Azure-BYOS:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-Azure-LI-BYOS-Production:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-Azure-LI-BYOS-Production:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-Azure-VLI-BYOS-Production:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-Azure-VLI-BYOS-Production:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-Azure:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-Azure:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-EC2-HVM-BYOS:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-EC2-HVM-BYOS:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-EC2-HVM:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-EC2-HVM:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-GCE-BYOS:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-GCE-BYOS:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-GCE:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-GCE:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-OCI-BYOS:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-OCI-BYOS:xorg-x11-Xvnc-1.8.0-13.11.1 SUSE Linux Enterprise Module for Basesystem 15:libXvnc1-1.8.0-13.11.1 SUSE Linux Enterprise Module for Basesystem 15:tigervnc-1.8.0-13.11.1 SUSE Linux Enterprise Module for Basesystem 15:xorg-x11-Xvnc-1.8.0-13.11.1 SUSE Linux Enterprise Module for Basesystem 15:xorg-x11-Xvnc-novnc-1.8.0-13.11.1 SUSE Linux Enterprise Module for Desktop Applications 15:libXvnc-devel-1.8.0-13.11.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2020/suse-su-20200112-1/ https://www.suse.com/security/cve/CVE-2019-15694.html CVE-2019-15694 https://bugzilla.suse.com/1160251 SUSE Bug 1160251 TigerVNC version prior to 1.10.1 is vulnerable to stack buffer overflow, which could be triggered from CMsgReader::readSetCursor. This vulnerability occurs due to insufficient sanitization of PixelFormat. Since remote attacker can choose offset from start of the buffer to start writing his values, exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity. CVE-2019-15695 Image SLES15-SAP-Azure-BYOS:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-Azure-BYOS:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-Azure-LI-BYOS-Production:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-Azure-LI-BYOS-Production:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-Azure-VLI-BYOS-Production:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-Azure-VLI-BYOS-Production:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-Azure:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-Azure:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-EC2-HVM-BYOS:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-EC2-HVM-BYOS:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-EC2-HVM:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-EC2-HVM:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-GCE-BYOS:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-GCE-BYOS:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-GCE:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-GCE:xorg-x11-Xvnc-1.8.0-13.11.1 Image SLES15-SAP-OCI-BYOS:libXvnc1-1.8.0-13.11.1 Image SLES15-SAP-OCI-BYOS:xorg-x11-Xvnc-1.8.0-13.11.1 SUSE Linux Enterprise Module for Basesystem 15:libXvnc1-1.8.0-13.11.1 SUSE Linux Enterprise Module for Basesystem 15:tigervnc-1.8.0-13.11.1 SUSE Linux Enterprise Module for Basesystem 15:xorg-x11-Xvnc-1.8.0-13.11.1 SUSE Linux Enterprise Module for Basesystem 15:xorg-x11-Xvnc-novnc-1.8.0-13.11.1 SUSE Linux Enterprise Module for Desktop Applications 15:libXvnc-devel-1.8.0-13.11.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2020/suse-su-20200112-1/ https://www.suse.com/security/cve/CVE-2019-15695.html CVE-2019-15695 https://bugzilla.suse.com/1159860 SUSE Bug 1159860