Security update for apache2

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
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: