Security update for libyang

Announcement ID:	SUSE-SU-2022:3245-1
Rating:	important
References:	bsc#1186374 bsc#1186375 bsc#1186376 bsc#1186378
Cross-References:	CVE-2021-28902 CVE-2021-28903 CVE-2021-28904 CVE-2021-28906
CVSS scores:	CVE-2021-28902 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2021-28902 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2021-28903 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2021-28903 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2021-28904 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2021-28904 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2021-28906 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2021-28906 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products:	openSUSE Leap 15.3 openSUSE Leap 15.4 Server Applications Module 15-SP3 Server Applications Module 15-SP4 SUSE Linux Enterprise High Performance Computing 15 SP3 SUSE Linux Enterprise High Performance Computing 15 SP4 SUSE Linux Enterprise Real Time 15 SP3 SUSE Linux Enterprise Real Time 15 SP4 SUSE Linux Enterprise Server 15 SP3 SUSE Linux Enterprise Server 15 SP3 Business Critical Linux 15-SP3 SUSE Linux Enterprise Server 15 SP4 SUSE Linux Enterprise Server for SAP Applications 15 SP3 SUSE Linux Enterprise Server for SAP Applications 15 SP4 SUSE Manager Proxy 4.2 SUSE Manager Proxy 4.3 SUSE Manager Retail Branch Server 4.2 SUSE Manager Retail Branch Server 4.3 SUSE Manager Server 4.2 SUSE Manager Server 4.3

An update that solves four vulnerabilities can now be installed.

Description:

This update for libyang fixes the following issues:

• CVE-2021-28906: Fixed missing check in read_yin_leaf that can lead to DoS (bsc#1186378)
• CVE-2021-28904: Fixed missing check in ext_get_plugin that lead to DoS (bsc#1186376).
• CVE-2021-28903: Fixed stack overflow in lyxml_parse_mem (bsc#1186375).
• CVE-2021-28902: Fixed missing check in read_yin_container that can lead to DoS (bsc#1186374).

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:

• openSUSE Leap 15.3
  zypper in -t patch SUSE-2022-3245=1
• openSUSE Leap 15.4
  zypper in -t patch openSUSE-SLE-15.4-2022-3245=1
• Server Applications Module 15-SP3
  zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP3-2022-3245=1
• Server Applications Module 15-SP4
  zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP4-2022-3245=1

Package List:

• openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64 i586)
  • libyang-extentions-1.0.184-150300.3.6.1
  • python3-yang-debuginfo-1.0.184-150300.3.6.1
  • libyang1-1.0.184-150300.3.6.1
  • yang-tools-1.0.184-150300.3.6.1
  • python3-yang-1.0.184-150300.3.6.1
  • libyang-cpp1-debuginfo-1.0.184-150300.3.6.1
  • libyang-extentions-debuginfo-1.0.184-150300.3.6.1
  • libyang-debugsource-1.0.184-150300.3.6.1
  • yang-tools-debuginfo-1.0.184-150300.3.6.1
  • libyang-cpp-devel-1.0.184-150300.3.6.1
  • libyang-devel-1.0.184-150300.3.6.1
  • libyang-cpp1-1.0.184-150300.3.6.1
  • libyang-debuginfo-1.0.184-150300.3.6.1
  • libyang1-debuginfo-1.0.184-150300.3.6.1
• openSUSE Leap 15.3 (noarch)
  • libyang-doc-1.0.184-150300.3.6.1
• openSUSE Leap 15.4 (aarch64 ppc64le s390x x86_64)
  • libyang-extentions-1.0.184-150300.3.6.1
  • python3-yang-debuginfo-1.0.184-150300.3.6.1
  • libyang1-1.0.184-150300.3.6.1
  • yang-tools-1.0.184-150300.3.6.1
  • python3-yang-1.0.184-150300.3.6.1
  • libyang-cpp1-debuginfo-1.0.184-150300.3.6.1
  • libyang-extentions-debuginfo-1.0.184-150300.3.6.1
  • libyang-debugsource-1.0.184-150300.3.6.1
  • yang-tools-debuginfo-1.0.184-150300.3.6.1
  • libyang-cpp-devel-1.0.184-150300.3.6.1
  • libyang-devel-1.0.184-150300.3.6.1
  • libyang-cpp1-1.0.184-150300.3.6.1
  • libyang-debuginfo-1.0.184-150300.3.6.1
  • libyang1-debuginfo-1.0.184-150300.3.6.1
• openSUSE Leap 15.4 (noarch)
  • libyang-doc-1.0.184-150300.3.6.1
• Server Applications Module 15-SP3 (aarch64 ppc64le s390x x86_64)
  • libyang-extentions-1.0.184-150300.3.6.1
  • libyang1-1.0.184-150300.3.6.1
  • libyang-extentions-debuginfo-1.0.184-150300.3.6.1
  • libyang-debugsource-1.0.184-150300.3.6.1
  • libyang-debuginfo-1.0.184-150300.3.6.1
  • libyang1-debuginfo-1.0.184-150300.3.6.1
• Server Applications Module 15-SP4 (aarch64 ppc64le s390x x86_64)
  • libyang-extentions-1.0.184-150300.3.6.1
  • libyang1-1.0.184-150300.3.6.1
  • libyang-extentions-debuginfo-1.0.184-150300.3.6.1
  • libyang-debugsource-1.0.184-150300.3.6.1
  • libyang-debuginfo-1.0.184-150300.3.6.1
  • libyang1-debuginfo-1.0.184-150300.3.6.1

References:

• https://www.suse.com/security/cve/CVE-2021-28902.html
• https://www.suse.com/security/cve/CVE-2021-28903.html
• https://www.suse.com/security/cve/CVE-2021-28904.html
• https://www.suse.com/security/cve/CVE-2021-28906.html
• https://bugzilla.suse.com/show_bug.cgi?id=1186374
• https://bugzilla.suse.com/show_bug.cgi?id=1186375
• https://bugzilla.suse.com/show_bug.cgi?id=1186376
• https://bugzilla.suse.com/show_bug.cgi?id=1186378