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====================================================================                   Red Hat Security Advisory

Synopsis:          Important: nginx:1.20 security update
Advisory ID:       RHSA-2022:0323-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2022:0323
Issue date:        2022-01-31
CVE Names:         CVE-2021-23017 
====================================================================
1. Summary:

An update for the nginx:1.20 module is now available for Red Hat Enterprise
Linux 8.

Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AppStream (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64

3. Description:

nginx is a web and proxy server supporting HTTP and other protocols, with a
focus on high concurrency, performance, and low memory usage.

The following packages have been upgraded to a later upstream version:
nginx (1.20.1). (BZ#2031030)

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.

4. 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

5. Bugs fixed (https://bugzilla.redhat.com/):

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

6. Package List:

Red Hat Enterprise Linux AppStream (v. 8):

Source:
nginx-1.20.1-1.module+el8.5.0+13723+ab304644.src.rpm

aarch64:
nginx-1.20.1-1.module+el8.5.0+13723+ab304644.aarch64.rpm
nginx-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.aarch64.rpm
nginx-debugsource-1.20.1-1.module+el8.5.0+13723+ab304644.aarch64.rpm
nginx-mod-http-image-filter-1.20.1-1.module+el8.5.0+13723+ab304644.aarch64.rpm
nginx-mod-http-image-filter-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.aarch64.rpm
nginx-mod-http-perl-1.20.1-1.module+el8.5.0+13723+ab304644.aarch64.rpm
nginx-mod-http-perl-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.aarch64.rpm
nginx-mod-http-xslt-filter-1.20.1-1.module+el8.5.0+13723+ab304644.aarch64.rpm
nginx-mod-http-xslt-filter-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.aarch64.rpm
nginx-mod-mail-1.20.1-1.module+el8.5.0+13723+ab304644.aarch64.rpm
nginx-mod-mail-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.aarch64.rpm
nginx-mod-stream-1.20.1-1.module+el8.5.0+13723+ab304644.aarch64.rpm
nginx-mod-stream-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.aarch64.rpm

noarch:
nginx-all-modules-1.20.1-1.module+el8.5.0+13723+ab304644.noarch.rpm
nginx-filesystem-1.20.1-1.module+el8.5.0+13723+ab304644.noarch.rpm

ppc64le:
nginx-1.20.1-1.module+el8.5.0+13723+ab304644.ppc64le.rpm
nginx-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.ppc64le.rpm
nginx-debugsource-1.20.1-1.module+el8.5.0+13723+ab304644.ppc64le.rpm
nginx-mod-http-image-filter-1.20.1-1.module+el8.5.0+13723+ab304644.ppc64le.rpm
nginx-mod-http-image-filter-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.ppc64le.rpm
nginx-mod-http-perl-1.20.1-1.module+el8.5.0+13723+ab304644.ppc64le.rpm
nginx-mod-http-perl-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.ppc64le.rpm
nginx-mod-http-xslt-filter-1.20.1-1.module+el8.5.0+13723+ab304644.ppc64le.rpm
nginx-mod-http-xslt-filter-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.ppc64le.rpm
nginx-mod-mail-1.20.1-1.module+el8.5.0+13723+ab304644.ppc64le.rpm
nginx-mod-mail-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.ppc64le.rpm
nginx-mod-stream-1.20.1-1.module+el8.5.0+13723+ab304644.ppc64le.rpm
nginx-mod-stream-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.ppc64le.rpm

s390x:
nginx-1.20.1-1.module+el8.5.0+13723+ab304644.s390x.rpm
nginx-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.s390x.rpm
nginx-debugsource-1.20.1-1.module+el8.5.0+13723+ab304644.s390x.rpm
nginx-mod-http-image-filter-1.20.1-1.module+el8.5.0+13723+ab304644.s390x.rpm
nginx-mod-http-image-filter-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.s390x.rpm
nginx-mod-http-perl-1.20.1-1.module+el8.5.0+13723+ab304644.s390x.rpm
nginx-mod-http-perl-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.s390x.rpm
nginx-mod-http-xslt-filter-1.20.1-1.module+el8.5.0+13723+ab304644.s390x.rpm
nginx-mod-http-xslt-filter-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.s390x.rpm
nginx-mod-mail-1.20.1-1.module+el8.5.0+13723+ab304644.s390x.rpm
nginx-mod-mail-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.s390x.rpm
nginx-mod-stream-1.20.1-1.module+el8.5.0+13723+ab304644.s390x.rpm
nginx-mod-stream-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.s390x.rpm

x86_64:
nginx-1.20.1-1.module+el8.5.0+13723+ab304644.x86_64.rpm
nginx-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.x86_64.rpm
nginx-debugsource-1.20.1-1.module+el8.5.0+13723+ab304644.x86_64.rpm
nginx-mod-http-image-filter-1.20.1-1.module+el8.5.0+13723+ab304644.x86_64.rpm
nginx-mod-http-image-filter-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.x86_64.rpm
nginx-mod-http-perl-1.20.1-1.module+el8.5.0+13723+ab304644.x86_64.rpm
nginx-mod-http-perl-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.x86_64.rpm
nginx-mod-http-xslt-filter-1.20.1-1.module+el8.5.0+13723+ab304644.x86_64.rpm
nginx-mod-http-xslt-filter-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.x86_64.rpm
nginx-mod-mail-1.20.1-1.module+el8.5.0+13723+ab304644.x86_64.rpm
nginx-mod-mail-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.x86_64.rpm
nginx-mod-stream-1.20.1-1.module+el8.5.0+13723+ab304644.x86_64.rpm
nginx-mod-stream-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

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

8. Contact:

The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2022 Red Hat, Inc.
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RedHat: RHSA-2022-0323:02 Important: nginx:1.20 security update

An update for the nginx:1.20 module is now available for Red Hat Enterprise Linux 8

Summary

nginx is a web and proxy server supporting HTTP and other protocols, with a focus on high concurrency, performance, and low memory usage.
The following packages have been upgraded to a later upstream version: nginx (1.20.1). (BZ#2031030)
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.

Summary

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

References

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

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: nginx-1.20.1-1.module+el8.5.0+13723+ab304644.src.rpm
aarch64: nginx-1.20.1-1.module+el8.5.0+13723+ab304644.aarch64.rpm nginx-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.aarch64.rpm nginx-debugsource-1.20.1-1.module+el8.5.0+13723+ab304644.aarch64.rpm nginx-mod-http-image-filter-1.20.1-1.module+el8.5.0+13723+ab304644.aarch64.rpm nginx-mod-http-image-filter-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.aarch64.rpm nginx-mod-http-perl-1.20.1-1.module+el8.5.0+13723+ab304644.aarch64.rpm nginx-mod-http-perl-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.aarch64.rpm nginx-mod-http-xslt-filter-1.20.1-1.module+el8.5.0+13723+ab304644.aarch64.rpm nginx-mod-http-xslt-filter-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.aarch64.rpm nginx-mod-mail-1.20.1-1.module+el8.5.0+13723+ab304644.aarch64.rpm nginx-mod-mail-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.aarch64.rpm nginx-mod-stream-1.20.1-1.module+el8.5.0+13723+ab304644.aarch64.rpm nginx-mod-stream-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.aarch64.rpm
noarch: nginx-all-modules-1.20.1-1.module+el8.5.0+13723+ab304644.noarch.rpm nginx-filesystem-1.20.1-1.module+el8.5.0+13723+ab304644.noarch.rpm
ppc64le: nginx-1.20.1-1.module+el8.5.0+13723+ab304644.ppc64le.rpm nginx-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.ppc64le.rpm nginx-debugsource-1.20.1-1.module+el8.5.0+13723+ab304644.ppc64le.rpm nginx-mod-http-image-filter-1.20.1-1.module+el8.5.0+13723+ab304644.ppc64le.rpm nginx-mod-http-image-filter-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.ppc64le.rpm nginx-mod-http-perl-1.20.1-1.module+el8.5.0+13723+ab304644.ppc64le.rpm nginx-mod-http-perl-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.ppc64le.rpm nginx-mod-http-xslt-filter-1.20.1-1.module+el8.5.0+13723+ab304644.ppc64le.rpm nginx-mod-http-xslt-filter-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.ppc64le.rpm nginx-mod-mail-1.20.1-1.module+el8.5.0+13723+ab304644.ppc64le.rpm nginx-mod-mail-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.ppc64le.rpm nginx-mod-stream-1.20.1-1.module+el8.5.0+13723+ab304644.ppc64le.rpm nginx-mod-stream-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.ppc64le.rpm
s390x: nginx-1.20.1-1.module+el8.5.0+13723+ab304644.s390x.rpm nginx-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.s390x.rpm nginx-debugsource-1.20.1-1.module+el8.5.0+13723+ab304644.s390x.rpm nginx-mod-http-image-filter-1.20.1-1.module+el8.5.0+13723+ab304644.s390x.rpm nginx-mod-http-image-filter-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.s390x.rpm nginx-mod-http-perl-1.20.1-1.module+el8.5.0+13723+ab304644.s390x.rpm nginx-mod-http-perl-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.s390x.rpm nginx-mod-http-xslt-filter-1.20.1-1.module+el8.5.0+13723+ab304644.s390x.rpm nginx-mod-http-xslt-filter-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.s390x.rpm nginx-mod-mail-1.20.1-1.module+el8.5.0+13723+ab304644.s390x.rpm nginx-mod-mail-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.s390x.rpm nginx-mod-stream-1.20.1-1.module+el8.5.0+13723+ab304644.s390x.rpm nginx-mod-stream-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.s390x.rpm
x86_64: nginx-1.20.1-1.module+el8.5.0+13723+ab304644.x86_64.rpm nginx-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.x86_64.rpm nginx-debugsource-1.20.1-1.module+el8.5.0+13723+ab304644.x86_64.rpm nginx-mod-http-image-filter-1.20.1-1.module+el8.5.0+13723+ab304644.x86_64.rpm nginx-mod-http-image-filter-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.x86_64.rpm nginx-mod-http-perl-1.20.1-1.module+el8.5.0+13723+ab304644.x86_64.rpm nginx-mod-http-perl-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.x86_64.rpm nginx-mod-http-xslt-filter-1.20.1-1.module+el8.5.0+13723+ab304644.x86_64.rpm nginx-mod-http-xslt-filter-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.x86_64.rpm nginx-mod-mail-1.20.1-1.module+el8.5.0+13723+ab304644.x86_64.rpm nginx-mod-mail-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.x86_64.rpm nginx-mod-stream-1.20.1-1.module+el8.5.0+13723+ab304644.x86_64.rpm nginx-mod-stream-debuginfo-1.20.1-1.module+el8.5.0+13723+ab304644.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/

Severity

Advisory ID: RHSA-2022:0323-01

Product: Red Hat Enterprise Linux

Advisory URL: https://access.redhat.com/errata/RHSA-2022:0323

Issued Date: : 2022-01-31

CVE Names: CVE-2021-23017

Topic

An update for the nginx:1.20 module is now available for Red Hat EnterpriseLinux 8.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.