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Red Hat: RHSA-2018-3680-01 Important Nginx Denial Of Service Fix

red hat
Calendar Grey November 27, 2018
Dist Redhat Esm H88
Sendero Azul issued a critical patch for svc-lighttpd impacting various vulnerabilities that could compromise server integrity.
An update for rh-nginx112-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-nginx112-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: Denial of service and memory disclosure via mp4 module (CVE-2018-16845)
* nginx: Excessive memory consumption via flaw in HTTP/2 implementation (CVE-2018-16843)
* nginx: Excessive CPU usage via flaw in HTTP/2 implementation (CVE-2018-16844)
For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.
Red Hat would like to thank the Nginx project for reporting these issues.

Topics%20covered

Topics Covered

security advisory Denial of Service web server important issue Red Hat Software Collections CPU usage nginx fix

References

https://access.redhat.com/security/cve/CVE-2018-16843 https://access.redhat.com/security/cve/CVE-2018-16844 https://access.redhat.com/security/cve/CVE-2018-16845 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7):
Source: rh-nginx112-nginx-1.12.1-2.el7.1.src.rpm
aarch64: rh-nginx112-nginx-1.12.1-2.el7.1.aarch64.rpm rh-nginx112-nginx-debuginfo-1.12.1-2.el7.1.aarch64.rpm rh-nginx112-nginx-mod-http-image-filter-1.12.1-2.el7.1.aarch64.rpm rh-nginx112-nginx-mod-http-xslt-filter-1.12.1-2.el7.1.aarch64.rpm rh-nginx112-nginx-mod-mail-1.12.1-2.el7.1.aarch64.rpm rh-nginx112-nginx-mod-stream-1.12.1-2.el7.1.aarch64.rpm
ppc64le: rh-nginx112-nginx-1.12.1-2.el7.1.ppc64le.rpm rh-nginx112-nginx-debuginfo-1.12.1-2.el7.1.ppc64le.rpm rh-nginx112-nginx-mod-http-image-filter-1.12.1-2.el7.1.ppc64le.rpm rh-nginx112-nginx-mod-http-xslt-filter-1.12.1-2.el7.1.ppc64le.rpm rh-nginx112-nginx-mod-mail-1.12.1-2.el7.1.ppc64le.rpm rh-nginx112-nginx-mod-stream-1.12.1-2.el7.1.ppc64le.rpm
s390x: rh-nginx112-nginx-1.12.1-2.el7.1.s390x.rpm rh-nginx112-nginx-debuginfo-1.12.1-2.el7.1.s390x.rpm rh-nginx112-nginx-mod-http-image-filter-1.12.1-2.el7.1.s390x.rpm rh-nginx112-nginx-mod-http-xslt-filter-1.12.1-2.el7.1.s390x.rpm rh-nginx112-nginx-mod-mail-1.12.1-2.el7.1.s390x.rpm rh-nginx112-nginx-mod-stream-1.12.1-2.el7.1.s390x.rpm
Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7):
Source: rh-nginx112-nginx-1.12.1-2.el7.1.src.rpm
aarch64:

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2018:3680-01
Product: Red Hat Software Collections
Advisory URL: https://access.redhat.com/errata/RHSA-2018:3680
Issue date: 2018-11-27

Topic

An update for rh-nginx112-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 Denial of Service web server important issue Red Hat Software Collections CPU usage nginx fix

Relevant Releases Architectures

Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) - aarch64, ppc64le, s390x, x86_64

Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.4) - ppc64le, s390x, x86_64

Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.5) - ppc64le, s390x, x86_64

Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6) - ppc64le, s390x, x86_64

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

Bugs Fixed

1644508 - CVE-2018-16845 nginx: Denial of service and memory disclosure via mp4 module

1644510 - CVE-2018-16844 nginx: Excessive CPU usage via flaw in HTTP/2 implementation

1644511 - CVE-2018-16843 nginx: Excessive memory consumption via flaw in HTTP/2 implementation

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