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AUSCERT External Security Bulletin Redistribution
ESB-2019.4520
SUSE-SU-2019:14235-1 Security update for tightvnc
2 December 2019
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AusCERT Security Bulletin Summary
---------------------------------
Product: tightvnc
Publisher: SUSE
Operating System: SUSE
UNIX variants (UNIX, Linux, OSX)
Windows
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2019-15680 CVE-2019-15679 CVE-2019-15678
CVE-2019-8287
Original Bulletin:
https://www.suse.com/support/update/announcement/2019/suse-su-201914235-1.html
Comment: This advisory references vulnerabilities in products which run on
platforms other than SUSE. It is recommended that administrators
running tightvnc check for an updated version of the software for
their operating system.
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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:
o CVE-2019-15679: Fixed a heap buffer overflow in InitialiseRFBConnection
which might lead to code execution (bsc#1155476).
o CVE-2019-8287: Fixed a global buffer overflow in HandleCoRREBBPmay which
might lead to code execution (bsc#1155472).
o CVE-2019-15680: Fixed a null pointer dereference in HandleZlibBPP which
could have led to denial of service (bsc#1155452).
o 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:
o SUSE Linux Enterprise Server 11-SP4-LTSS:
zypper in -t patch slessp4-tightvnc-14235=1
o SUSE Linux Enterprise Point of Sale 11-SP3:
zypper in -t patch sleposp3-tightvnc-14235=1
o SUSE Linux Enterprise Debuginfo 11-SP4:
zypper in -t patch dbgsp4-tightvnc-14235=1
o SUSE Linux Enterprise Debuginfo 11-SP3:
zypper in -t patch dbgsp3-tightvnc-14235=1
Package List:
o SUSE Linux Enterprise Server 11-SP4-LTSS (i586 ppc64 s390x x86_64):
tightvnc-1.3.9-81.15.3.1
o SUSE Linux Enterprise Point of Sale 11-SP3 (i586):
tightvnc-1.3.9-81.15.3.1
o 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
o 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:
o https://www.suse.com/security/cve/CVE-2019-15678.html
o https://www.suse.com/security/cve/CVE-2019-15679.html
o https://www.suse.com/security/cve/CVE-2019-15680.html
o https://www.suse.com/security/cve/CVE-2019-8287.html
o https://bugzilla.suse.com/1155442
o https://bugzilla.suse.com/1155452
o https://bugzilla.suse.com/1155472
o https://bugzilla.suse.com/1155476
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===========================================================================
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