Security update for wicked

Announcement ID:	SUSE-SU-2020:0358-1
Rating:	important
References:	bsc#1142214 bsc#1160903 bsc#1160904 bsc#1160905 bsc#1160906
Cross-References:	CVE-2019-18902 CVE-2019-18903 CVE-2020-7216 CVE-2020-7217
CVSS scores:	CVE-2019-18902 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L CVE-2019-18902 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2019-18903 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L CVE-2019-18903 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2020-7216 ( SUSE ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVE-2020-7216 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2020-7217 ( SUSE ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVE-2020-7217 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products:	SUSE Linux Enterprise Server 12 SP1 SUSE Linux Enterprise Server 12 SP1 LTSS 12-SP1 SUSE Linux Enterprise Server for SAP Applications 12 SP1

An update that solves four vulnerabilities and has one security fix can now be installed.

Description:

This update for wicked fixes the following issues:

• CVE-2019-18902: Fixed a use-after-free when receiving invalid DHCP6 client options (bsc#1160903).
• CVE-2019-18903: Fixed a use-after-free when receiving invalid DHCP6 IA_PD option (bsc#1160904).
• CVE-2020-7216: Fixed a potential denial of service via a memory leak when processing packets with missing message type option in DHCP4 (bsc#1160905).
• CVE-2020-7217: Fixed a memory leak in DHCP4 fsm when processing packets for other client ids (bsc#1160906).

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 Server for SAP Applications 12 SP1
  zypper in -t patch SUSE-SLE-SAP-12-SP1-2020-358=1
• SUSE Linux Enterprise Server 12 SP1 LTSS 12-SP1
  zypper in -t patch SUSE-SLE-SERVER-12-SP1-2020-358=1

Package List:

• SUSE Linux Enterprise Server for SAP Applications 12 SP1 (x86_64)
  • wicked-debugsource-0.6.60-28.26.1
  • wicked-service-0.6.60-28.26.1
  • wicked-debuginfo-0.6.60-28.26.1
  • wicked-0.6.60-28.26.1
• SUSE Linux Enterprise Server 12 SP1 LTSS 12-SP1 (ppc64le s390x x86_64)
  • wicked-debugsource-0.6.60-28.26.1
  • wicked-service-0.6.60-28.26.1
  • wicked-debuginfo-0.6.60-28.26.1
  • wicked-0.6.60-28.26.1

References:

• https://www.suse.com/security/cve/CVE-2019-18902.html
• https://www.suse.com/security/cve/CVE-2019-18903.html
• https://www.suse.com/security/cve/CVE-2020-7216.html
• https://www.suse.com/security/cve/CVE-2020-7217.html
• https://bugzilla.suse.com/show_bug.cgi?id=1142214
• https://bugzilla.suse.com/show_bug.cgi?id=1160903
• https://bugzilla.suse.com/show_bug.cgi?id=1160904
• https://bugzilla.suse.com/show_bug.cgi?id=1160905
• https://bugzilla.suse.com/show_bug.cgi?id=1160906