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SUSE: 2021:1839-1 Critical: Nginx DNS Heap Write Security Update

suse
Calendar Grey June 2, 2021
Dist Suse Esm H88
SUSE releases a crucial security patch for nginx tackling a severe heap overflow vulnerability. Learn more and apply the fix immediately.
An update that fixes one vulnerability is now available

Summary

This update for nginx fixes the following issues: - CVE-2021-23017: nginx DNS resolver off-by-one heap write (bsc#1186126) 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 Manager Server 4.0: zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Server-4.0-2021-1839=1 - SUSE Manager Retail Branch Server 4.0: zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Retail-Branch-Server-4.0-2021-1839=1 - SUSE Manager Proxy 4.0: zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Proxy-4.0-2021-1839=1 - SUSE Linux Enterprise Server for SAP 15-SP1: zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP1-2021-1839=1

Topics%20covered

Topics Covered

security advisory critical patch DNS issue SUSE nginx heap write

References

#1186126

Cross- CVE-2021-23017

CVSS scores:

CVE-2021-23017 (SUSE): 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products:

SUSE Manager Server 4.0

SUSE Manager Retail Branch Server 4.0

SUSE Manager Proxy 4.0

SUSE Linux Enterprise Server for SAP 15-SP1

SUSE Linux Enterprise Server 15-SP1-LTSS

SUSE Linux Enterprise Server 15-SP1-BCL

SUSE Linux Enterprise High Performance Computing 15-SP1-LTSS

SUSE Linux Enterprise High Performance Computing 15-SP1-ESPOS

SUSE Enterprise Storage 6

SUSE CaaS Platform 4.0

https://www.suse.com/security/cve/CVE-2021-23017.html

https://bugzilla.suse.com/1186126

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2021:1839-1
Rating: important

Topics%20covered

Topics Covered

security advisory critical patch DNS issue SUSE nginx heap write

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