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Red Hat 7: RHSA-2021:2278-01 Important Nginx Security Patch

red hat
Calendar Grey June 7, 2021
Dist Redhat Esm H88
Crucial notification regarding rh-nginx116-nginx targeting vulnerabilities to bolster server security.
An update for rh-nginx116-nginx is now available for Red Hat Software Collections

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

The rh-nginx116-nginx service must be restarted for this update to take effect.

Summary

nginx is a web and proxy server supporting HTTP and other protocols, with a focus on high concurrency, performance, and low memory usage.
Security Fix(es):
* nginx: Off-by-one in ngx_resolver_copy() when labels are followed by a pointer to a root domain name (CVE-2021-23017)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat security impact nginx web server server security important update

References

https://access.redhat.com/security/cve/CVE-2021-23017 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7):
Source: rh-nginx116-nginx-1.16.1-6.el7.src.rpm
ppc64le: rh-nginx116-nginx-1.16.1-6.el7.ppc64le.rpm rh-nginx116-nginx-debuginfo-1.16.1-6.el7.ppc64le.rpm rh-nginx116-nginx-mod-http-image-filter-1.16.1-6.el7.ppc64le.rpm rh-nginx116-nginx-mod-http-perl-1.16.1-6.el7.ppc64le.rpm rh-nginx116-nginx-mod-http-xslt-filter-1.16.1-6.el7.ppc64le.rpm rh-nginx116-nginx-mod-mail-1.16.1-6.el7.ppc64le.rpm rh-nginx116-nginx-mod-stream-1.16.1-6.el7.ppc64le.rpm
s390x: rh-nginx116-nginx-1.16.1-6.el7.s390x.rpm rh-nginx116-nginx-debuginfo-1.16.1-6.el7.s390x.rpm rh-nginx116-nginx-mod-http-image-filter-1.16.1-6.el7.s390x.rpm rh-nginx116-nginx-mod-http-perl-1.16.1-6.el7.s390x.rpm rh-nginx116-nginx-mod-http-xslt-filter-1.16.1-6.el7.s390x.rpm rh-nginx116-nginx-mod-mail-1.16.1-6.el7.s390x.rpm rh-nginx116-nginx-mod-stream-1.16.1-6.el7.s390x.rpm
x86_64: rh-nginx116-nginx-1.16.1-6.el7.x86_64.rpm rh-nginx116-nginx-debuginfo-1.16.1-6.el7.x86_64.rpm rh-nginx116-nginx-mod-http-image-filter-1.16.1-6.el7.x86_64.rpm rh-nginx116-nginx-mod-http-perl-1.16.1-6.el7.x86_64.rpm rh-nginx116-nginx-mod-http-xslt-filter-1.16.1-6.el7.x86_64.rpm rh-nginx116-nginx-mod-mail-1.16.1-6.el7.x86_64.rpm rh-nginx116-nginx-mod-stream-1.16.1-6.el7.x86_64.rpm


Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:2278-01
Product: Red Hat Software Collections
Advisory URL: https://access.redhat.com/errata/RHSA-2021:2278
Issue date: 2021-06-07

Topic

An update for rh-nginx116-nginx is now available for Red Hat SoftwareCollections.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat security impact nginx web server server security important update

Relevant Releases Architectures

Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) - ppc64le, s390x, x86_64

Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7) - ppc64le, s390x, x86_64

Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) - x86_64

Bugs Fixed

1963121 - CVE-2021-23017 nginx: Off-by-one in ngx_resolver_copy() when labels are followed by a pointer to a root domain name

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