CVE-2013-2028

Public Exploit

Description

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.

Category

7.5
CVSS
Severity: High
CVSS 2.0 •
EPSS 92.53% Top 5%
Vendor Advisory fedoraproject.org Vendor Advisory gentoo.org Vendor Advisory nginx.org Vendor Advisory nginx.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://mailman.nginx.org/pipermail/nginx-announce/2013/000112.html mailing list mitigation patch vendor advisory
http://www.osvdb.org/93037 vdb entry broken link
http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105176.html third party advisory vendor advisory
http://www.vnsecurity.net/2013/05/analysis-of-nginx-cve-2013-2028/ broken link
http://secunia.com/advisories/55181 third party advisory
http://www.securityfocus.com/bid/59699 vdb entry third party advisory
http://security.gentoo.org/glsa/glsa-201310-04.xml third party advisory vendor advisory
https://github.com/rapid7/metasploit-framework/pull/1834 third party advisory patch
http://nginx.org/download/patch.2013.chunked.txt patch vendor advisory
http://packetstormsecurity.com/files/121675/Nginx-1.3.9-1.4.0-Denial-Of-Service.html exploit vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2013-2028?
CVE-2013-2028 has been scored as a high severity vulnerability.
How to fix CVE-2013-2028?
To fix CVE-2013-2028, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2013-2028 being actively exploited in the wild?
It is possible that CVE-2013-2028 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~93% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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