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[security-announce] SUSE-SU-2018:0830-1: important: Security update for LibVNCServer
SUSE Security Update: Security update for LibVNCServer
______________________________________________________________________________

Announcement ID: SUSE-SU-2018:0830-1
Rating: important
References: #1017711 #1017712 #1081493
Cross-References: CVE-2016-9941 CVE-2016-9942 CVE-2018-7225

Affected Products:
SUSE Linux Enterprise Software Development Kit 12-SP3
SUSE Linux Enterprise Software Development Kit 12-SP2
SUSE Linux Enterprise Server for Raspberry Pi 12-SP2
SUSE Linux Enterprise Server 12-SP3
SUSE Linux Enterprise Server 12-SP2
______________________________________________________________________________

An update that fixes three vulnerabilities is now available.

Description:


LibVNCServer was updated to fix two security issues.

These security issues were fixed:

- CVE-2018-7225: Missing input sanitization inside rfbserver.c
rfbProcessClientNormalMessage() (bsc#1081493).
- CVE-2016-9942: Heap-based buffer overflow in ultra.c allowed remote
servers to cause a denial of service (application crash) or possibly
execute arbitrary code via a crafted FramebufferUpdate message with the
Ultra type tile, such that the LZO payload decompressed length exceeds
what is specified by the tile dimensions (bsc#1017712).
- CVE-2016-9941: Heap-based buffer overflow in rfbproto.c allowed remote
servers to cause a denial of service (application crash) or possibly
execute arbitrary code via a crafted FramebufferUpdate message
containing a subrectangle outside of the client drawing area
(bsc#1017711).


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 Software Development Kit 12-SP3:

zypper in -t patch SUSE-SLE-SDK-12-SP3-2018-554=1

- SUSE Linux Enterprise Software Development Kit 12-SP2:

zypper in -t patch SUSE-SLE-SDK-12-SP2-2018-554=1

- SUSE Linux Enterprise Server for Raspberry Pi 12-SP2:

zypper in -t patch SUSE-SLE-RPI-12-SP2-2018-554=1

- SUSE Linux Enterprise Server 12-SP3:

zypper in -t patch SUSE-SLE-SERVER-12-SP3-2018-554=1

- SUSE Linux Enterprise Server 12-SP2:

zypper in -t patch SUSE-SLE-SERVER-12-SP2-2018-554=1



Package List:

- SUSE Linux Enterprise Software Development Kit 12-SP3 (aarch64 ppc64le
s390x x86_64):

LibVNCServer-debugsource-0.9.9-17.5.1
LibVNCServer-devel-0.9.9-17.5.1

- SUSE Linux Enterprise Software Development Kit 12-SP2 (aarch64 ppc64le
s390x x86_64):

LibVNCServer-debugsource-0.9.9-17.5.1
LibVNCServer-devel-0.9.9-17.5.1

- SUSE Linux Enterprise Server for Raspberry Pi 12-SP2 (aarch64):

LibVNCServer-debugsource-0.9.9-17.5.1
libvncclient0-0.9.9-17.5.1
libvncclient0-debuginfo-0.9.9-17.5.1
libvncserver0-0.9.9-17.5.1
libvncserver0-debuginfo-0.9.9-17.5.1

- SUSE Linux Enterprise Server 12-SP3 (aarch64 ppc64le s390x x86_64):

LibVNCServer-debugsource-0.9.9-17.5.1
libvncclient0-0.9.9-17.5.1
libvncclient0-debuginfo-0.9.9-17.5.1
libvncserver0-0.9.9-17.5.1
libvncserver0-debuginfo-0.9.9-17.5.1

- SUSE Linux Enterprise Server 12-SP2 (aarch64 ppc64le s390x x86_64):

LibVNCServer-debugsource-0.9.9-17.5.1
libvncclient0-0.9.9-17.5.1
libvncclient0-debuginfo-0.9.9-17.5.1
libvncserver0-0.9.9-17.5.1
libvncserver0-debuginfo-0.9.9-17.5.1


References:

https://www.suse.com/security/cve/CVE-2016-9941.html
https://www.suse.com/security/cve/CVE-2016-9942.html
https://www.suse.com/security/cve/CVE-2018-7225.html
https://bugzilla.suse.com/1017711
https://bugzilla.suse.com/1017712
https://bugzilla.suse.com/1081493

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