CVE-2018-16843

Impact:
Moderate
Public Date:
2018-11-06
CWE:
CWE-400
Bugzilla:
1644511: CVE-2018-16843 nginx: Excessive memory consumption via flaw in HTTP/2 implementation

The MITRE CVE dictionary describes this issue as:

nginx before versions 1.15.6 and 1.14.1 has a vulnerability in the implementation of HTTP/2 that can allow for excessive memory consumption. This issue affects nginx compiled with the ngx_http_v2_module (not compiled by default) if the 'http2' option of the 'listen' directive is used in a configuration file.

Find out more about CVE-2018-16843 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

This issue did not affect the versions of rh-nginx18-nginx as shipped with Red Hat Software Collections as they did not include the vulnerable module ngx_http_v2_module.

CVSS v3 metrics

CVSS3 Base Score 5.3
CVSS3 Base Metrics CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity Impact None
Availability Impact Low

Red Hat Security Errata

Platform Errata Release Date
Red Hat Software Collections for Red Hat Enterprise Linux 7 (rh-nginx112-nginx) RHSA-2018:3680 2018-11-27
Red Hat Software Collections for Red Hat Enterprise Linux 7 (rh-nginx114-nginx) RHSA-2018:3681 2018-11-27
Red Hat Software Collections for Red Hat Enterprise Linux 6 (rh-nginx110-nginx) RHSA-2018:3653 2018-11-26
Red Hat Software Collections for Red Hat Enterprise Linux 7 (rh-nginx110-nginx) RHSA-2018:3653 2018-11-26

Affected Packages State

Platform Package State
Red Hat Software Collections for Red Hat Enterprise Linux rh-nginx18-nginx Not affected
Red Hat Enterprise Linux 8 nginx Not affected
Red Hat Ansible Tower 3 for RHEL 7 nginx Not affected
CloudForms Management Engine 5 nginx Not affected
Unless explicitly stated as not affected, all previous versions of packages in any minor update stream of a product listed here should be assumed vulnerable, although may not have been subject to full analysis.

Acknowledgements

Red Hat would like to thank the Nginx project for reporting this issue.

External References

Last Modified

CVE description copyright © 2017, The MITRE Corporation