An apache2 security update has been released for openSUSE Leap 15.3.

openSUSE-SU-2021:2127-1: important: Security update for apache2

openSUSE Security Update: Security update for apache2
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Announcement ID: openSUSE-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 (NVD) : 9.8 CVSS:3.1/AV:N/AC:L/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 (NVD) : 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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:
openSUSE Leap 15.3
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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 openSUSE 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:

- openSUSE Leap 15.3:

zypper in -t patch openSUSE-SLE-15.3-2021-2127=1


Package List:

- openSUSE Leap 15.3 (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-devel-2.4.43-3.22.1
apache2-event-2.4.43-3.22.1
apache2-event-debuginfo-2.4.43-3.22.1
apache2-example-pages-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
apache2-worker-2.4.43-3.22.1
apache2-worker-debuginfo-2.4.43-3.22.1

- openSUSE Leap 15.3 (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/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