SUSE Security Update: Security update for apache2
______________________________________________________________________________

Announcement ID:    SUSE-SU-2021:2127-1
Rating:             important
References:         #1186922 #1186923 #1186924 #1187017 #1187040 
                    #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 (NVD) : 7.5
 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
                    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-2020-35452 (NVD) : 7.3
 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
                    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-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-2021-26690 (SUSE): 8.1
 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
                    CVE-2021-26691 (SUSE): 7.5
 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
                    CVE-2021-30641 (NVD) : 5.3
 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
                    CVE-2021-30641 (SUSE): 5.9
 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
                    CVE-2021-31618 (SUSE): 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 Module for Server Applications 15-SP3
                    SUSE Linux Enterprise Module for Server Applications 15-SP2
                    SUSE Linux Enterprise Module for Packagehub Subpackages
 15-SP3
                    SUSE Linux Enterprise Module for Basesystem 15-SP3
                    SUSE Linux Enterprise Module for Basesystem 15-SP2
______________________________________________________________________________

   An update that fixes 6 vulnerabilities is now available.

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 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 Module for Server Applications 15-SP3:

      zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP3-2021-2127=1

   - SUSE Linux Enterprise Module for Server Applications 15-SP2:

      zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP2-2021-2127=1

   - SUSE Linux Enterprise Module for Packagehub Subpackages 15-SP3:

      zypper in -t patch
 SUSE-SLE-Module-Packagehub-Subpackages-15-SP3-2021-2127=1

   - SUSE Linux Enterprise Module for Basesystem 15-SP3:

      zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP3-2021-2127=1

   - SUSE Linux Enterprise Module for Basesystem 15-SP2:

      zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP2-2021-2127=1



Package List:

   - SUSE Linux Enterprise Module for Server Applications 15-SP3 (aarch64
 ppc64le s390x x86_64):

      apache2-debuginfo-2.4.43-3.22.1
      apache2-debugsource-2.4.43-3.22.1
      apache2-devel-2.4.43-3.22.1
      apache2-worker-2.4.43-3.22.1
      apache2-worker-debuginfo-2.4.43-3.22.1

   - SUSE Linux Enterprise Module for Server Applications 15-SP3 (noarch):

      apache2-doc-2.4.43-3.22.1

   - SUSE Linux Enterprise Module for Server Applications 15-SP2 (aarch64
 ppc64le s390x x86_64):

      apache2-debuginfo-2.4.43-3.22.1
      apache2-debugsource-2.4.43-3.22.1
      apache2-devel-2.4.43-3.22.1
      apache2-worker-2.4.43-3.22.1
      apache2-worker-debuginfo-2.4.43-3.22.1

   - SUSE Linux Enterprise Module for Server Applications 15-SP2 (noarch):

      apache2-doc-2.4.43-3.22.1

   - SUSE Linux Enterprise Module for Packagehub Subpackages 15-SP3 (aarch64
 ppc64le s390x x86_64):

      apache2-debuginfo-2.4.43-3.22.1
      apache2-debugsource-2.4.43-3.22.1
      apache2-event-2.4.43-3.22.1
      apache2-event-debuginfo-2.4.43-3.22.1

   - SUSE Linux Enterprise Module for Basesystem 15-SP3 (aarch64 ppc64le s390x
 x86_64):

      apache2-2.4.43-3.22.1
      apache2-debuginfo-2.4.43-3.22.1
      apache2-debugsource-2.4.43-3.22.1
      apache2-prefork-2.4.43-3.22.1
      apache2-prefork-debuginfo-2.4.43-3.22.1
      apache2-utils-2.4.43-3.22.1
      apache2-utils-debuginfo-2.4.43-3.22.1

   - SUSE Linux Enterprise Module for Basesystem 15-SP2 (aarch64 ppc64le s390x
 x86_64):

      apache2-2.4.43-3.22.1
      apache2-debuginfo-2.4.43-3.22.1
      apache2-debugsource-2.4.43-3.22.1
      apache2-prefork-2.4.43-3.22.1
      apache2-prefork-debuginfo-2.4.43-3.22.1
      apache2-utils-2.4.43-3.22.1
      apache2-utils-debuginfo-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/1186922
   https://bugzilla.suse.com/1186923
   https://bugzilla.suse.com/1186924
   https://bugzilla.suse.com/1187017
   https://bugzilla.suse.com/1187040
   https://bugzilla.suse.com/1187174