CVE-2013-2028: Buffer Overflow
First published: Thu Jul 18 2013(Updated: )
The ngx_http_parse_chunked function in http/ngx_http_parse.c in nginx 1.3.9 through 1.4.0 allows remote attackers to cause a denial of service (crash) and execute arbitrary code via a chunked Transfer-Encoding request with a large chunk size, which triggers an integer signedness error and a stack-based buffer overflow.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| F5 NGINX App Protect | >=1.3.9<=1.4.0 | |
| Fedora | =19 |
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Reference Links
- http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105176.html
- http://mailman.nginx.org/pipermail/nginx-announce/2013/000112.html
- http://nginx.org/download/patch.2013.chunked.txt
- http://packetstormsecurity.com/files/121675/Nginx-1.3.9-1.4.0-Denial-Of-Service.html
- http://secunia.com/advisories/55181
- http://security.gentoo.org/glsa/glsa-201310-04.xml
- http://www.osvdb.org/93037
- http://www.securityfocus.com/bid/59699
- http://www.vnsecurity.net/2013/05/analysis-of-nginx-cve-2013-2028/
- https://github.com/rapid7/metasploit-framework/pull/1834
Frequently Asked Questions
What is the severity of CVE-2013-2028?
CVE-2013-2028 has a high severity rating due to its potential for remote code execution and denial of service.
How do I fix CVE-2013-2028?
To fix CVE-2013-2028, upgrade your Nginx installation to version 1.4.1 or later.
What versions of Nginx are affected by CVE-2013-2028?
CVE-2013-2028 affects Nginx versions 1.3.9 through 1.4.0.
Can CVE-2013-2028 lead to arbitrary code execution?
Yes, CVE-2013-2028 can enable remote attackers to execute arbitrary code on vulnerable systems.
What types of systems are impacted by CVE-2013-2028?
CVE-2013-2028 impacts systems running affected versions of Nginx, including certain Fedora distributions.
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- vendor/f5
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- version/f5 nginx app protect/1.3.9
- version/f5 nginx app protect/1.4.0
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- version/fedora/19