SUSE-SU-2020:14424-1: important: Security update for LibVNCServer

[sle-updates at lists.suse.com]

   SUSE Security Update: Security update for LibVNCServer
______________________________________________________________________________

Announcement ID:    SUSE-SU-2020:14424-1
Rating:             important
References:         #1173691 #1173694 #1173700 #1173701 #1173743 
                    #1173880 
Cross-References:   CVE-2020-14397 CVE-2020-14398 CVE-2020-14399
                    CVE-2020-14400 CVE-2020-14401 CVE-2020-14402
                   
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 6 vulnerabilities is now available.

Description:

   This update for LibVNCServer fixes the following issues:

   - security update
   - added patches 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.
     + LibVNCServer-CVE-2020-14399.patch fix CVE-2020-14400 [bsc#1173691],
       Byte-aligned data is accessed through uint16_t pointers in
       libvncserver/translate.c.
     + LibVNCServer-CVE-2020-14400.patch fix CVE-2020-14401 [bsc#1173694],
       potential integer overflows in libvncserver/scale.c
     + LibVNCServer-CVE-2020-14401.patch fix CVE-2020-14402 [bsc#1173701],
       out-of-bounds access via encodings.
     + LibVNCServer-CVE-2020-14402,14403,14404.patch


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 11-SP4-LTSS:

      zypper in -t patch slessp4-LibVNCServer-14424=1

   - SUSE Linux Enterprise Point of Sale 11-SP3:

      zypper in -t patch sleposp3-LibVNCServer-14424=1

   - SUSE Linux Enterprise Debuginfo 11-SP4:

      zypper in -t patch dbgsp4-LibVNCServer-14424=1

   - SUSE Linux Enterprise Debuginfo 11-SP3:

      zypper in -t patch dbgsp3-LibVNCServer-14424=1



Package List:

   - SUSE Linux Enterprise Server 11-SP4-LTSS (i586 ppc64 s390x x86_64):

      LibVNCServer-0.9.1-160.19.1

   - SUSE Linux Enterprise Point of Sale 11-SP3 (i586):

      LibVNCServer-0.9.1-160.19.1

   - SUSE Linux Enterprise Debuginfo 11-SP4 (i586 ppc64 s390x x86_64):

      LibVNCServer-debuginfo-0.9.1-160.19.1
      LibVNCServer-debugsource-0.9.1-160.19.1

   - SUSE Linux Enterprise Debuginfo 11-SP3 (i586 s390x x86_64):

      LibVNCServer-debuginfo-0.9.1-160.19.1
      LibVNCServer-debugsource-0.9.1-160.19.1


References:

   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/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/1173880