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openSUSE Leap 15.1: 2020:0988-1 Important: LibVNCServer Buffer Overflow

opensuse
Calendar Grey July 18, 2020
Dist Opensuse Esm H88
A significant release for Fedora addresses severe vulnerabilities within LibVNCServer. Ensure you apply the most recent updates promptly.
An update that fixes 10 vulnerabilities is now available.

Description

This update for LibVNCServer fixes the following issues:

- security update

- added patches fix CVE-2018-21247 [bsc#1173874], uninitialized memory

contents are vulnerable to Information leak

+ LibVNCServer-CVE-2018-21247.patch fix CVE-2019-20839 [bsc#1173875],

buffer overflow in ConnectClientToUnixSock()

+ LibVNCServer-CVE-2019-20839.patch fix CVE-2019-20840 [bsc#1173876],

unaligned accesses in hybiReadAndDecode can lead to denial of service

+ LibVNCServer-CVE-2019-20840.patch fix CVE-2020-14398 [bsc#1173880],

improperly closed TCP connection causes an infinite loop in

libvncclient/sockets.c

+ LibVNCServer-CVE-2020-14398.patch fix CVE-2020-14397 [bsc#1173700],

NULL pointer dereference in libvncserver/rfbregion.c

+ LibVNCServer-CVE-2020-14397.patch fix CVE-2020-14399 [bsc#1173743],

Byte-aligned data is accessed through uint32_t pointers in

libvncclient/rfbproto.c.

+...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service information leak buffer overflow critical openSUSE LibVNCServer

Patch

Patch Instructions:

To install this openSUSE 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:

- openSUSE Leap 15.1:

zypper in -t patch openSUSE-2020-988=1

Package List

- openSUSE Leap 15.1 (i586 x86_64):

LibVNCServer-debugsource-0.9.10-lp151.7.9.1

LibVNCServer-devel-0.9.10-lp151.7.9.1

libvncclient0-0.9.10-lp151.7.9.1

libvncclient0-debuginfo-0.9.10-lp151.7.9.1

libvncserver0-0.9.10-lp151.7.9.1

libvncserver0-debuginfo-0.9.10-lp151.7.9.1

References

https://www.suse.com/security/cve/CVE-2017-18922.html

https://www.suse.com/security/cve/CVE-2018-21247.html

https://www.suse.com/security/cve/CVE-2019-20839.html

https://www.suse.com/security/cve/CVE-2019-20840.html

https://www.suse.com/security/cve/CVE-2020-14397.html

https://www.suse.com/security/cve/CVE-2020-14398.html

https://www.suse.com/security/cve/CVE-2020-14399.html

https://www.suse.com/security/cve/CVE-2020-14400.html

https://www.suse.com/security/cve/CVE-2020-14401.html

https://www.suse.com/security/cve/CVE-2020-14402.html

https://bugzilla.suse.com/1173477

https://bugzilla.suse.com/1173691

https://bugzilla.suse.com/1173694

https://bugzilla.suse.com/1173700

https://bugzilla.suse.com/1173701

https://bugzilla.suse.com/1173743

https://bugzilla.suse.com/1173874

https://bugzilla.suse.com/1173875

https://bugzilla.suse.com/1173876

https://bugzilla.suse.com/1173880

--

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: openSUSE-SU-2020:0988-1
Rating: important
Affected Products: openSUSE Leap 15.1

Topics%20covered

Topics Covered

security advisory denial of service information leak buffer overflow critical openSUSE LibVNCServer

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