SUSE Security Update: Security update for nginx
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Announcement ID:    SUSE-SU-2022:4192-1
Rating:             important
References:         #1187685 
Cross-References:   CVE-2021-3618
CVSS scores:
                    CVE-2021-3618 (NVD) : 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
                    CVE-2021-3618 (SUSE): 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected Products:
                    SUSE Linux Enterprise High Performance Computing 15-ESPOS
                    SUSE Linux Enterprise High Performance Computing 15-LTSS
                    SUSE Linux Enterprise Server 15-LTSS
                    SUSE Linux Enterprise Server for SAP 15
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   An update that fixes one vulnerability is now available.

Description:

   This update for nginx fixes the following issues:

   - CVE-2021-3618: Fixed the ALPACA attack limiting the number of errors
     after which the connection is closed (bsc#1187685).


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 Server for SAP 15:

      zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-2022-4192=1

   - SUSE Linux Enterprise Server 15-LTSS:

      zypper in -t patch SUSE-SLE-Product-SLES-15-2022-4192=1

   - SUSE Linux Enterprise High Performance Computing 15-LTSS:

      zypper in -t patch SUSE-SLE-Product-HPC-15-2022-4192=1

   - SUSE Linux Enterprise High Performance Computing 15-ESPOS:

      zypper in -t patch SUSE-SLE-Product-HPC-15-2022-4192=1



Package List:

   - SUSE Linux Enterprise Server for SAP 15 (ppc64le x86_64):

      nginx-1.16.1-150000.3.18.1
      nginx-debuginfo-1.16.1-150000.3.18.1
      nginx-debugsource-1.16.1-150000.3.18.1

   - SUSE Linux Enterprise Server 15-LTSS (aarch64 s390x):

      nginx-1.16.1-150000.3.18.1
      nginx-debuginfo-1.16.1-150000.3.18.1
      nginx-debugsource-1.16.1-150000.3.18.1

   - SUSE Linux Enterprise High Performance Computing 15-LTSS (aarch64 x86_64):

      nginx-1.16.1-150000.3.18.1
      nginx-debuginfo-1.16.1-150000.3.18.1
      nginx-debugsource-1.16.1-150000.3.18.1

   - SUSE Linux Enterprise High Performance Computing 15-ESPOS (aarch64 x86_64):

      nginx-1.16.1-150000.3.18.1
      nginx-debuginfo-1.16.1-150000.3.18.1
      nginx-debugsource-1.16.1-150000.3.18.1


References:

   https://www.suse.com/security/cve/CVE-2021-3618.html
   https://bugzilla.suse.com/1187685