CVE-2016-1544
First published: Mon Feb 15 2016(Updated: )
A vulnerability was found in a way nghttp2 processes incoming packets. Nghttpd, nghttp, and libnghttp2_asio applications do not limit the memory usage for the incoming HTTP header field. If peer sends specially crafted HTTP/2 HEADERS frames and CONTINUATION frames, they will crash with out of memory error. Upstream report and fix: <a href="https://github.com/tatsuhiro-t/nghttp2/releases/tag/v1.7.1">https://github.com/tatsuhiro-t/nghttp2/releases/tag/v1.7.1</a>
Credit: cret@cert.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/nghttp2 | <1.7.1 | 1.7.1 |
| CentOS Libnghttp2 | <1.7.1 | |
| Red Hat Fedora | =22 | |
| Red Hat Fedora | =23 |
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Reference Links
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177308.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177666.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1308461
- https://github.com/nghttp2/nghttp2/compare/v1.7.0...v1.7.1
- https://github.com/nghttp2/nghttp2/releases/tag/v1.7.1
- https://security.gentoo.org/glsa/201612-13
- https://github.com/tatsuhiro-t/nghttp2/releases/tag/v1.7.1
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1308463
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1308467
- https://github.com/tatsuhiro-t/nghttp2/compare/v1.7.0...v1.7.1
Frequently Asked Questions
What is the severity of CVE-2016-1544?
CVE-2016-1544 is classified as a medium severity vulnerability affecting nghttp2 applications.
What are the potential consequences of CVE-2016-1544?
Exploiting CVE-2016-1544 can lead to application crashes due to out of memory errors when processing malicious HTTP/2 packets.
How do I fix CVE-2016-1544?
To fix CVE-2016-1544, update nghttp2 to version 1.7.1 or later.
Which software is affected by CVE-2016-1544?
CVE-2016-1544 affects nghttp2, nghttpd, and libnghttp2_asio versions prior to 1.7.1.
Is there a workaround for CVE-2016-1544?
There are no known workarounds for CVE-2016-1544, so updating to the fixed version is recommended.
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