Security update for LibVNCServer

Announcement ID: SUSE-SU-2020:14424-1
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2020-14397 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • CVE-2020-14397 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2020-14398 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
  • CVE-2020-14398 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2020-14399 ( SUSE ): 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
  • CVE-2020-14399 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2020-14400 ( SUSE ): 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
  • CVE-2020-14400 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2020-14401 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
  • CVE-2020-14401 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
  • CVE-2020-14402 ( SUSE ): 6.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
  • CVE-2020-14402 ( NVD ): 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
Affected Products:
  • SUSE Linux Enterprise Point of Service 11 SP3
  • SUSE Linux Enterprise Server 11 SP4
  • SUSE Linux Enterprise Server 11 SP4 LTSS 11-SP4

An update that solves six vulnerabilities can now be installed.

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 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 Point of Service 11 SP3
    zypper in -t patch sleposp3-LibVNCServer-14424=1
  • SUSE Linux Enterprise Server 11 SP4 LTSS 11-SP4
    zypper in -t patch slessp4-LibVNCServer-14424=1
  • SUSE Linux Enterprise Server 11 SP4
    zypper in -t patch slessp4-LibVNCServer-14424=1

Package List:

  • SUSE Linux Enterprise Point of Service 11 SP3 (i586)
    • LibVNCServer-0.9.1-160.19.1
  • SUSE Linux Enterprise Server 11 SP4 LTSS 11-SP4 (ppc64 s390x x86_64 i586)
    • LibVNCServer-0.9.1-160.19.1
  • SUSE Linux Enterprise Server 11 SP4 (ppc64 s390x x86_64 i586)
    • LibVNCServer-0.9.1-160.19.1

References: