CVE-2009-1902: Null Pointer Dereference
First published: Wed Jun 03 2009(Updated: )
The multipart processor in ModSecurity before 2.5.9 allows remote attackers to cause a denial of service (crash) via a multipart form datapost request with a missing part header name, which triggers a NULL pointer dereference.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| ModSecurity | <2.5.9 | |
| Fedora | =10 | |
| Fedora | =9 | |
| Trustwave ModSecurity | <2.5.9 |
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Reference Links
- https://www.redhat.com/archives/fedora-package-announce/2009-March/msg00487.html
- http://www.securityfocus.com/bid/34096
- http://secunia.com/advisories/34311
- http://secunia.com/advisories/34256
- http://www.securityfocus.com/archive/1/501968
- https://www.redhat.com/archives/fedora-package-announce/2009-March/msg00529.html
- http://www.osvdb.org/52553
- http://sourceforge.net/project/shownotes.php?release_id=667542&group_id=68846
- http://www.vupen.com/english/advisories/2009/0703
- http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00003.html
- http://security.gentoo.org/glsa/glsa-200907-02.xml
- http://secunia.com/advisories/35687
- https://exchange.xforce.ibmcloud.com/vulnerabilities/49212
- https://www.exploit-db.com/exploits/8241
Frequently Asked Questions
What is the severity of CVE-2009-1902?
CVE-2009-1902 is rated as a high severity vulnerability due to its ability to cause a denial of service.
How do I fix CVE-2009-1902?
To fix CVE-2009-1902, upgrade ModSecurity to version 2.5.9 or later.
What type of attack does CVE-2009-1902 enable?
CVE-2009-1902 allows remote attackers to trigger a denial of service by exploiting multipart form datapost requests.
Which software versions are affected by CVE-2009-1902?
CVE-2009-1902 affects all versions of ModSecurity prior to 2.5.9 and specific Fedora versions including 9 and 10.
What happens when CVE-2009-1902 is exploited?
Exploiting CVE-2009-1902 can lead to a crash of the ModSecurity service due to a NULL pointer dereference.
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