SUSE Security Update: Security update for tigervnc ______________________________________________________________________________
Announcement ID: SUSE-SU-2020:1749-1 Rating: important References: #1159856 #1159858 #1159860 #1160249 #1160250 #1160251 #1160937 #1165680 #1169952 Cross-References: CVE-2019-15691 CVE-2019-15692 CVE-2019-15693 CVE-2019-15694 CVE-2019-15695 Affected Products: SUSE Linux Enterprise Server 12-SP5 SUSE Linux Enterprise Server 12-SP4 ______________________________________________________________________________
An update that solves 5 vulnerabilities and has four fixes is now available.
Description:
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).
Other bugs fixed:
- Fix random connection freezes (bsc#1169952, bsc#1160249, bsc#1165680):
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 12-SP5:
zypper in -t patch SUSE-SLE-SERVER-12-SP5-2020-1749=1
- SUSE Linux Enterprise Server 12-SP4:
zypper in -t patch SUSE-SLE-SERVER-12-SP4-2020-1749=1
Package List:
- SUSE Linux Enterprise Server 12-SP5 (aarch64 ppc64le s390x x86_64):
