Security update for apache2

Announcement ID:	SUSE-SU-2021:2127-1
Rating:	important
References:	bsc#1186922 bsc#1186923 bsc#1186924 bsc#1187017 bsc#1187040 bsc#1187174
Cross-References:	CVE-2020-13950 CVE-2020-35452 CVE-2021-26690 CVE-2021-26691 CVE-2021-30641 CVE-2021-31618
CVSS scores:	CVE-2020-13950 ( SUSE ): 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2020-13950 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2020-35452 ( SUSE ): 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2020-35452 ( NVD ): 7.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L CVE-2021-26690 ( SUSE ): 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2021-26690 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2021-26691 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2021-26691 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2021-30641 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N CVE-2021-30641 ( NVD ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVE-2021-31618 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2021-31618 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products:	Basesystem Module 15-SP2 Basesystem Module 15-SP3 Server Applications Module 15-SP2 Server Applications Module 15-SP3 SUSE Linux Enterprise Desktop 15 SP2 SUSE Linux Enterprise Desktop 15 SP3 SUSE Linux Enterprise High Performance Computing 15 SP2 SUSE Linux Enterprise High Performance Computing 15 SP3 SUSE Linux Enterprise Micro 5.1 SUSE Linux Enterprise Micro 5.2 SUSE Linux Enterprise Real Time 15 SP2 SUSE Linux Enterprise Real Time 15 SP3 SUSE Linux Enterprise Server 15 SP2 SUSE Linux Enterprise Server 15 SP2 Business Critical Linux 15-SP2 SUSE Linux Enterprise Server 15 SP3 SUSE Linux Enterprise Server 15 SP3 Business Critical Linux 15-SP3 SUSE Linux Enterprise Server for SAP Applications 15 SP2 SUSE Linux Enterprise Server for SAP Applications 15 SP3 SUSE Manager Proxy 4.1 SUSE Manager Proxy 4.2 SUSE Manager Retail Branch Server 4.1 SUSE Manager Retail Branch Server 4.2 SUSE Manager Server 4.1 SUSE Manager Server 4.2 SUSE Package Hub 15 15-SP3

An update that solves six vulnerabilities can now be installed.

Description:

This update for apache2 fixes the following issues:

• fixed CVE-2021-30641 [bsc#1187174]: MergeSlashes regression
• fixed CVE-2021-31618 [bsc#1186924]: NULL pointer dereference on specially crafted HTTP/2 request
• fixed CVE-2020-13950 [bsc#1187040]: mod_proxy NULL pointer dereference
• fixed CVE-2020-35452 [bsc#1186922]: Single zero byte stack overflow in mod_auth_digest
• fixed CVE-2021-26690 [bsc#1186923]: mod_session NULL pointer dereference in parser
• fixed CVE-2021-26691 [bsc#1187017]: Heap overflow in mod_session

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:

• Basesystem Module 15-SP2
  zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP2-2021-2127=1
• Basesystem Module 15-SP3
  zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP3-2021-2127=1
• SUSE Package Hub 15 15-SP3
  zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP3-2021-2127=1
• Server Applications Module 15-SP2
  zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP2-2021-2127=1
• Server Applications Module 15-SP3
  zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP3-2021-2127=1

Package List:

• Basesystem Module 15-SP2 (aarch64 ppc64le s390x x86_64)
  • apache2-prefork-debuginfo-2.4.43-3.22.1
  • apache2-prefork-2.4.43-3.22.1
  • apache2-2.4.43-3.22.1
  • apache2-debuginfo-2.4.43-3.22.1
  • apache2-utils-2.4.43-3.22.1
  • apache2-utils-debuginfo-2.4.43-3.22.1
  • apache2-debugsource-2.4.43-3.22.1
• Basesystem Module 15-SP3 (aarch64 ppc64le s390x x86_64)
  • apache2-prefork-debuginfo-2.4.43-3.22.1
  • apache2-prefork-2.4.43-3.22.1
  • apache2-2.4.43-3.22.1
  • apache2-debuginfo-2.4.43-3.22.1
  • apache2-utils-2.4.43-3.22.1
  • apache2-utils-debuginfo-2.4.43-3.22.1
  • apache2-debugsource-2.4.43-3.22.1
• SUSE Package Hub 15 15-SP3 (aarch64 ppc64le s390x x86_64)
  • apache2-debuginfo-2.4.43-3.22.1
  • apache2-event-debuginfo-2.4.43-3.22.1
  • apache2-debugsource-2.4.43-3.22.1
  • apache2-event-2.4.43-3.22.1
• Server Applications Module 15-SP2 (aarch64 ppc64le s390x x86_64)
  • apache2-devel-2.4.43-3.22.1
  • apache2-debuginfo-2.4.43-3.22.1
  • apache2-worker-2.4.43-3.22.1
  • apache2-debugsource-2.4.43-3.22.1
  • apache2-worker-debuginfo-2.4.43-3.22.1
• Server Applications Module 15-SP2 (noarch)
  • apache2-doc-2.4.43-3.22.1
• Server Applications Module 15-SP3 (aarch64 ppc64le s390x x86_64)
  • apache2-devel-2.4.43-3.22.1
  • apache2-debuginfo-2.4.43-3.22.1
  • apache2-worker-2.4.43-3.22.1
  • apache2-debugsource-2.4.43-3.22.1
  • apache2-worker-debuginfo-2.4.43-3.22.1
• Server Applications Module 15-SP3 (noarch)
  • apache2-doc-2.4.43-3.22.1

References:

• https://www.suse.com/security/cve/CVE-2020-13950.html
• https://www.suse.com/security/cve/CVE-2020-35452.html
• https://www.suse.com/security/cve/CVE-2021-26690.html
• https://www.suse.com/security/cve/CVE-2021-26691.html
• https://www.suse.com/security/cve/CVE-2021-30641.html
• https://www.suse.com/security/cve/CVE-2021-31618.html
• https://bugzilla.suse.com/show_bug.cgi?id=1186922
• https://bugzilla.suse.com/show_bug.cgi?id=1186923
• https://bugzilla.suse.com/show_bug.cgi?id=1186924
• https://bugzilla.suse.com/show_bug.cgi?id=1187017
• https://bugzilla.suse.com/show_bug.cgi?id=1187040
• https://bugzilla.suse.com/show_bug.cgi?id=1187174