openSUSE Leap 15.2: 2020:1056-1 Important: LibVNCServer Buffer Overflow
opensuse
July 24, 2020
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 Covered
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 15.2:
zypper in -t patch openSUSE-2020-1056=1
Package List
- openSUSE Leap 15.2 (i586 x86_64):
LibVNCServer-debugsource-0.9.10-lp152.9.4.2
LibVNCServer-devel-0.9.10-lp152.9.4.2
libvncclient0-0.9.10-lp152.9.4.2
libvncclient0-debuginfo-0.9.10-lp152.9.4.2
libvncserver0-0.9.10-lp152.9.4.2
libvncserver0-debuginfo-0.9.10-lp152.9.4.2
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
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Severity
important
Lowest
Low
Medium
High
Critical
Announcement ID: openSUSE-SU-2020:1056-1
Rating: important
Affected Products:
openSUSE Leap 15.2
Topics Covered
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