Security update for apache2

Announcement ID: SUSE-SU-2021:2127-1
Rating: important
References:
Cross-References:
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: