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RedHat RHSA-2022-0323 Important Nginx:1.20 Security Update

red hat
Calendar Grey January 31, 2022
Dist Redhat Esm H88
A significant patch for nginx: 1.20 on CentOS 8 has been released to tackle pressing security vulnerabilities. Find out more.
An update for the nginx:1.20 module is now available for Red Hat Enterprise Linux 8

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

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.

Topics%20covered

Topics Covered

security advisory Red Hat Enterprise Linux security impact nginx important update module update Off-by-one

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:

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

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

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.

Topics%20covered

Topics Covered

security advisory Red Hat Enterprise Linux security impact nginx important update module update Off-by-one

Relevant Releases Architectures

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