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Red Hat: RHSA-2019:2746-01 Important: Nginx HTTP/2 DoS Issues

Calendar Sep 12, 2019 • User Avatar LinuxSecurity Advisories
7 - 13 min read
Redhat Large Esm H500
Topics%20covered

Topics Covered

security advisory denial of service red hat software update nginx resource consumption http/2
An update for rh-nginx112-nginx is now available for Red Hat Software Collections. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, 
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

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

Synopsis:          Important: rh-nginx112-nginx security update
Advisory ID:       RHSA-2019:2746-01
Product:           Red Hat Software Collections
Advisory URL:      https://access.redhat.com/errata/RHSA-2019:2746
Issue date:        2019-09-12
CVE Names:         CVE-2019-9511 CVE-2019-9513 CVE-2019-9516 
====================================================================
1. Summary:

An update for rh-nginx112-nginx is now available for Red Hat Software
Collections.

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 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 Server EUS (v. 7.7) - ppc64le, s390x, x86_64
Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) - 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.

Security Fix(es):

* HTTP/2: large amount of data request leads to denial of service
(CVE-2019-9511)

* HTTP/2: flood using PRIORITY frames resulting in excessive resource
consumption (CVE-2019-9513)

* HTTP/2: 0-length headers leads to denial of service (CVE-2019-9516)

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

The rh-nginx112-nginx service must be restarted for this update to take
effect.

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

1735741 - CVE-2019-9513 HTTP/2: flood using PRIORITY frames resulting in excessive resource consumption
1741860 - CVE-2019-9511 HTTP/2: large amount of data request leads to denial of service
1741864 - CVE-2019-9516 HTTP/2: 0-length headers leads to denial of service

6. Package List:

Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7):

Source:
rh-nginx112-nginx-1.12.1-3.el7.1.src.rpm

aarch64:
rh-nginx112-nginx-1.12.1-3.el7.1.aarch64.rpm
rh-nginx112-nginx-debuginfo-1.12.1-3.el7.1.aarch64.rpm
rh-nginx112-nginx-mod-http-image-filter-1.12.1-3.el7.1.aarch64.rpm
rh-nginx112-nginx-mod-http-xslt-filter-1.12.1-3.el7.1.aarch64.rpm
rh-nginx112-nginx-mod-mail-1.12.1-3.el7.1.aarch64.rpm
rh-nginx112-nginx-mod-stream-1.12.1-3.el7.1.aarch64.rpm

ppc64le:
rh-nginx112-nginx-1.12.1-3.el7.1.ppc64le.rpm
rh-nginx112-nginx-debuginfo-1.12.1-3.el7.1.ppc64le.rpm
rh-nginx112-nginx-mod-http-image-filter-1.12.1-3.el7.1.ppc64le.rpm
rh-nginx112-nginx-mod-http-xslt-filter-1.12.1-3.el7.1.ppc64le.rpm
rh-nginx112-nginx-mod-mail-1.12.1-3.el7.1.ppc64le.rpm
rh-nginx112-nginx-mod-stream-1.12.1-3.el7.1.ppc64le.rpm

s390x:
rh-nginx112-nginx-1.12.1-3.el7.1.s390x.rpm
rh-nginx112-nginx-debuginfo-1.12.1-3.el7.1.s390x.rpm
rh-nginx112-nginx-mod-http-image-filter-1.12.1-3.el7.1.s390x.rpm
rh-nginx112-nginx-mod-http-xslt-filter-1.12.1-3.el7.1.s390x.rpm
rh-nginx112-nginx-mod-mail-1.12.1-3.el7.1.s390x.rpm
rh-nginx112-nginx-mod-stream-1.12.1-3.el7.1.s390x.rpm

Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7):

Source:
rh-nginx112-nginx-1.12.1-3.el7.1.src.rpm

aarch64:
rh-nginx112-nginx-1.12.1-3.el7.1.aarch64.rpm
rh-nginx112-nginx-debuginfo-1.12.1-3.el7.1.aarch64.rpm
rh-nginx112-nginx-mod-http-image-filter-1.12.1-3.el7.1.aarch64.rpm
rh-nginx112-nginx-mod-http-xslt-filter-1.12.1-3.el7.1.aarch64.rpm
rh-nginx112-nginx-mod-mail-1.12.1-3.el7.1.aarch64.rpm
rh-nginx112-nginx-mod-stream-1.12.1-3.el7.1.aarch64.rpm

ppc64le:
rh-nginx112-nginx-1.12.1-3.el7.1.ppc64le.rpm
rh-nginx112-nginx-debuginfo-1.12.1-3.el7.1.ppc64le.rpm
rh-nginx112-nginx-mod-http-image-filter-1.12.1-3.el7.1.ppc64le.rpm
rh-nginx112-nginx-mod-http-xslt-filter-1.12.1-3.el7.1.ppc64le.rpm
rh-nginx112-nginx-mod-mail-1.12.1-3.el7.1.ppc64le.rpm
rh-nginx112-nginx-mod-stream-1.12.1-3.el7.1.ppc64le.rpm

s390x:
rh-nginx112-nginx-1.12.1-3.el7.1.s390x.rpm
rh-nginx112-nginx-debuginfo-1.12.1-3.el7.1.s390x.rpm
rh-nginx112-nginx-mod-http-image-filter-1.12.1-3.el7.1.s390x.rpm
rh-nginx112-nginx-mod-http-xslt-filter-1.12.1-3.el7.1.s390x.rpm
rh-nginx112-nginx-mod-mail-1.12.1-3.el7.1.s390x.rpm
rh-nginx112-nginx-mod-stream-1.12.1-3.el7.1.s390x.rpm

x86_64:
rh-nginx112-nginx-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-debuginfo-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-mod-http-image-filter-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-mod-http-perl-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-mod-http-xslt-filter-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-mod-mail-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-mod-stream-1.12.1-3.el7.1.x86_64.rpm

Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.4):

Source:
rh-nginx112-nginx-1.12.1-3.el7.1.src.rpm

ppc64le:
rh-nginx112-nginx-1.12.1-3.el7.1.ppc64le.rpm
rh-nginx112-nginx-debuginfo-1.12.1-3.el7.1.ppc64le.rpm
rh-nginx112-nginx-mod-http-image-filter-1.12.1-3.el7.1.ppc64le.rpm
rh-nginx112-nginx-mod-http-xslt-filter-1.12.1-3.el7.1.ppc64le.rpm
rh-nginx112-nginx-mod-mail-1.12.1-3.el7.1.ppc64le.rpm
rh-nginx112-nginx-mod-stream-1.12.1-3.el7.1.ppc64le.rpm

s390x:
rh-nginx112-nginx-1.12.1-3.el7.1.s390x.rpm
rh-nginx112-nginx-debuginfo-1.12.1-3.el7.1.s390x.rpm
rh-nginx112-nginx-mod-http-image-filter-1.12.1-3.el7.1.s390x.rpm
rh-nginx112-nginx-mod-http-xslt-filter-1.12.1-3.el7.1.s390x.rpm
rh-nginx112-nginx-mod-mail-1.12.1-3.el7.1.s390x.rpm
rh-nginx112-nginx-mod-stream-1.12.1-3.el7.1.s390x.rpm

x86_64:
rh-nginx112-nginx-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-debuginfo-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-mod-http-image-filter-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-mod-http-perl-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-mod-http-xslt-filter-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-mod-mail-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-mod-stream-1.12.1-3.el7.1.x86_64.rpm

Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.5):

Source:
rh-nginx112-nginx-1.12.1-3.el7.1.src.rpm

ppc64le:
rh-nginx112-nginx-1.12.1-3.el7.1.ppc64le.rpm
rh-nginx112-nginx-debuginfo-1.12.1-3.el7.1.ppc64le.rpm
rh-nginx112-nginx-mod-http-image-filter-1.12.1-3.el7.1.ppc64le.rpm
rh-nginx112-nginx-mod-http-xslt-filter-1.12.1-3.el7.1.ppc64le.rpm
rh-nginx112-nginx-mod-mail-1.12.1-3.el7.1.ppc64le.rpm
rh-nginx112-nginx-mod-stream-1.12.1-3.el7.1.ppc64le.rpm

s390x:
rh-nginx112-nginx-1.12.1-3.el7.1.s390x.rpm
rh-nginx112-nginx-debuginfo-1.12.1-3.el7.1.s390x.rpm
rh-nginx112-nginx-mod-http-image-filter-1.12.1-3.el7.1.s390x.rpm
rh-nginx112-nginx-mod-http-xslt-filter-1.12.1-3.el7.1.s390x.rpm
rh-nginx112-nginx-mod-mail-1.12.1-3.el7.1.s390x.rpm
rh-nginx112-nginx-mod-stream-1.12.1-3.el7.1.s390x.rpm

x86_64:
rh-nginx112-nginx-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-debuginfo-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-mod-http-image-filter-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-mod-http-perl-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-mod-http-xslt-filter-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-mod-mail-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-mod-stream-1.12.1-3.el7.1.x86_64.rpm

Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6):

Source:
rh-nginx112-nginx-1.12.1-3.el7.1.src.rpm

ppc64le:
rh-nginx112-nginx-1.12.1-3.el7.1.ppc64le.rpm
rh-nginx112-nginx-debuginfo-1.12.1-3.el7.1.ppc64le.rpm
rh-nginx112-nginx-mod-http-image-filter-1.12.1-3.el7.1.ppc64le.rpm
rh-nginx112-nginx-mod-http-xslt-filter-1.12.1-3.el7.1.ppc64le.rpm
rh-nginx112-nginx-mod-mail-1.12.1-3.el7.1.ppc64le.rpm
rh-nginx112-nginx-mod-stream-1.12.1-3.el7.1.ppc64le.rpm

s390x:
rh-nginx112-nginx-1.12.1-3.el7.1.s390x.rpm
rh-nginx112-nginx-debuginfo-1.12.1-3.el7.1.s390x.rpm
rh-nginx112-nginx-mod-http-image-filter-1.12.1-3.el7.1.s390x.rpm
rh-nginx112-nginx-mod-http-xslt-filter-1.12.1-3.el7.1.s390x.rpm
rh-nginx112-nginx-mod-mail-1.12.1-3.el7.1.s390x.rpm
rh-nginx112-nginx-mod-stream-1.12.1-3.el7.1.s390x.rpm

x86_64:
rh-nginx112-nginx-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-debuginfo-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-mod-http-image-filter-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-mod-http-perl-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-mod-http-xslt-filter-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-mod-mail-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-mod-stream-1.12.1-3.el7.1.x86_64.rpm

Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7):

Source:
rh-nginx112-nginx-1.12.1-3.el7.1.src.rpm

ppc64le:
rh-nginx112-nginx-1.12.1-3.el7.1.ppc64le.rpm
rh-nginx112-nginx-debuginfo-1.12.1-3.el7.1.ppc64le.rpm
rh-nginx112-nginx-mod-http-image-filter-1.12.1-3.el7.1.ppc64le.rpm
rh-nginx112-nginx-mod-http-xslt-filter-1.12.1-3.el7.1.ppc64le.rpm
rh-nginx112-nginx-mod-mail-1.12.1-3.el7.1.ppc64le.rpm
rh-nginx112-nginx-mod-stream-1.12.1-3.el7.1.ppc64le.rpm

s390x:
rh-nginx112-nginx-1.12.1-3.el7.1.s390x.rpm
rh-nginx112-nginx-debuginfo-1.12.1-3.el7.1.s390x.rpm
rh-nginx112-nginx-mod-http-image-filter-1.12.1-3.el7.1.s390x.rpm
rh-nginx112-nginx-mod-http-xslt-filter-1.12.1-3.el7.1.s390x.rpm
rh-nginx112-nginx-mod-mail-1.12.1-3.el7.1.s390x.rpm
rh-nginx112-nginx-mod-stream-1.12.1-3.el7.1.s390x.rpm

x86_64:
rh-nginx112-nginx-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-debuginfo-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-mod-http-image-filter-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-mod-http-perl-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-mod-http-xslt-filter-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-mod-mail-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-mod-stream-1.12.1-3.el7.1.x86_64.rpm

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

Source:
rh-nginx112-nginx-1.12.1-3.el7.1.src.rpm

x86_64:
rh-nginx112-nginx-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-debuginfo-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-mod-http-image-filter-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-mod-http-perl-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-mod-http-xslt-filter-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-mod-mail-1.12.1-3.el7.1.x86_64.rpm
rh-nginx112-nginx-mod-stream-1.12.1-3.el7.1.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-2019-9511
https://access.redhat.com/security/cve/CVE-2019-9513
https://access.redhat.com/security/cve/CVE-2019-9516
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 2019 Red Hat, Inc.
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Red Hat: RHSA-2019:2746-01 Important: Nginx HTTP/2 DoS Issues

red hat
Calendar Grey September 12, 2019
Dist Redhat Esm H88
Crucial rh-nginx112-nginx security patch released for Red Hat Software Collections, tackling severe HTTP/2 vulnerabilities.
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):
* HTTP/2: large amount of data request leads to denial of service (CVE-2019-9511)
* HTTP/2: flood using PRIORITY frames resulting in excessive resource consumption (CVE-2019-9513)
* HTTP/2: 0-length headers leads to denial of service (CVE-2019-9516)
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 denial of service red hat software update nginx resource consumption http/2

References

https://access.redhat.com/security/cve/CVE-2019-9511 https://access.redhat.com/security/cve/CVE-2019-9513 https://access.redhat.com/security/cve/CVE-2019-9516 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-1.12.1-3.el7.1.src.rpm
aarch64: rh-nginx112-nginx-1.12.1-3.el7.1.aarch64.rpm rh-nginx112-nginx-debuginfo-1.12.1-3.el7.1.aarch64.rpm rh-nginx112-nginx-mod-http-image-filter-1.12.1-3.el7.1.aarch64.rpm rh-nginx112-nginx-mod-http-xslt-filter-1.12.1-3.el7.1.aarch64.rpm rh-nginx112-nginx-mod-mail-1.12.1-3.el7.1.aarch64.rpm rh-nginx112-nginx-mod-stream-1.12.1-3.el7.1.aarch64.rpm
ppc64le: rh-nginx112-nginx-1.12.1-3.el7.1.ppc64le.rpm rh-nginx112-nginx-debuginfo-1.12.1-3.el7.1.ppc64le.rpm rh-nginx112-nginx-mod-http-image-filter-1.12.1-3.el7.1.ppc64le.rpm rh-nginx112-nginx-mod-http-xslt-filter-1.12.1-3.el7.1.ppc64le.rpm rh-nginx112-nginx-mod-mail-1.12.1-3.el7.1.ppc64le.rpm rh-nginx112-nginx-mod-stream-1.12.1-3.el7.1.ppc64le.rpm
s390x: rh-nginx112-nginx-1.12.1-3.el7.1.s390x.rpm rh-nginx112-nginx-debuginfo-1.12.1-3.el7.1.s390x.rpm rh-nginx112-nginx-mod-http-image-filter-1.12.1-3.el7.1.s390x.rpm rh-nginx112-nginx-mod-http-xslt-filter-1.12.1-3.el7.1.s390x.rpm rh-nginx112-nginx-mod-mail-1.12.1-3.el7.1.s390x.rpm rh-nginx112-nginx-mod-stream-1.12.1-3.el7.1.s390x.rpm
Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7):
Source: rh-nginx112-nginx-1.12.1-3.el7.1.src.rpm
aarch64:

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2019:2746-01
Product: Red Hat Software Collections
Advisory URL: https://access.redhat.com/errata/RHSA-2019:2746
Issue date: 2019-09-12

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 red hat software update nginx resource consumption http/2

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 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

1735741 - CVE-2019-9513 HTTP/2: flood using PRIORITY frames resulting in excessive resource consumption

1741860 - CVE-2019-9511 HTTP/2: large amount of data request leads to denial of service

1741864 - CVE-2019-9516 HTTP/2: 0-length headers leads to denial of service

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