CVE-2018-16844
First published: Wed Oct 31 2018(Updated: )
IDE Xcode Server. Multiple issues were addressed by updating nginx to version 1.21.0.
Credit: CVE-2016-0742 CVE-2016-0746 CVE-2016-0747 CVE-2017-7529 CVE-2018-16843 CVE-2018-16844 CVE-2018-16845 CVE-2019-20372 secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/nginx | <1.15.6 | 1.15.6 |
| redhat/nginx | <1.14.1 | 1.14.1 |
| ubuntu/nginx | <1.15.6 | 1.15.6 |
| ubuntu/nginx | <1.10.3-0ubuntu0.16.04.3 | 1.10.3-0ubuntu0.16.04.3 |
| ubuntu/nginx | <1.14.0-0ubuntu1.2 | 1.14.0-0ubuntu1.2 |
| ubuntu/nginx | <1.15.5-0ubuntu2.1 | 1.15.5-0ubuntu2.1 |
| >=1.9.5<1.14.1 | ||
| >=1.15.0<1.15.6 | ||
| =9.0 | ||
| =14.04 | ||
| =16.04 | ||
| =18.04 | ||
| =18.10 | ||
| <13.0 | ||
| F5 Nginx | >=1.9.5<1.14.1 | |
| F5 Nginx | >=1.15.0<1.15.6 | |
| Debian Debian Linux | =9.0 | |
| Canonical Ubuntu Linux | =14.04 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =18.04 | |
| Canonical Ubuntu Linux | =18.10 | |
| Apple Xcode | <13.0 | |
| Apple Xcode | <13 | 13 |
| debian/nginx | 1.14.2-2+deb10u4 1.14.2-2+deb10u5 1.18.0-6.1+deb11u3 1.22.1-9 1.24.0-2 |
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Reference Links
- https://support.apple.com/en-us/HT212818 (Advisory)
- http://mailman.nginx.org/pipermail/nginx-announce/2018/000220.html
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16844
- https://usn.ubuntu.com/3812-1/
- http://www.securitytracker.com/id/1042038
- https://www.debian.org/security/2018/dsa-4335
- http://www.securityfocus.com/bid/105868
- https://access.redhat.com/errata/RHSA-2018:3680
- https://access.redhat.com/errata/RHSA-2018:3681
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00035.html
- https://support.apple.com/kb/HT212818
- http://seclists.org/fulldisclosure/2021/Sep/36
- https://launchpad.net/bugs/cve/CVE-2018-16844
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1647260
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1647258
- http://hg.nginx.org/nginx/rev/9200b41db765
- https://bugzilla.redhat.com/show_bug.cgi?id=1644510
- https://security-tracker.debian.org/tracker/CVE-2018-16844
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16844
- https://ubuntu.com/security/notices/USN-3812-1
- https://nvd.nist.gov/vuln/detail/CVE-2018-16844
- http://hg.nginx.org/nginx/rev/e7f19d268c72
- https://ubuntu.com/security/CVE-2018-16844
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is CVE-2018-16844?
CVE-2018-16844 is a vulnerability in nginx before versions 1.15.6 and 1.14.1 that allows for excessive CPU usage due to a flaw in the implementation of HTTP/2.
Who is affected by CVE-2018-16844?
Users of the affected versions of nginx (1.15.6 and 1.14.1) and Xcode are affected by CVE-2018-16844.
How do I fix CVE-2018-16844?
To fix CVE-2018-16844, update nginx to version 1.21.0 or later.
Where can I find more information about CVE-2018-16844?
You can find more information about CVE-2018-16844 in the references provided.
What is the severity of CVE-2018-16844?
CVE-2018-16844 has a severity rating of 7.5 (high).
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