CVE-2009-1902

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.

• CWE-476

• http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00003.htmlNot Applicable
• http://secunia.com/advisories/34256Third Party Advisory
• http://secunia.com/advisories/34311Third Party Advisory
• http://secunia.com/advisories/35687Third Party Advisory
• http://security.gentoo.org/glsa/glsa-200907-02.xmlThird Party Advisory
• http://sourceforge.net/project/shownotes.php?release_id=667542&group_id=68846Third Party Advisory
• http://www.osvdb.org/52553Broken Link
• http://www.securityfocus.com/archive/1/501968Exploit, Third Party Advisory, VDB Entry
• http://www.securityfocus.com/bid/34096Exploit, Third Party Advisory, VDB Entry
• http://www.vupen.com/english/advisories/2009/0703Third Party Advisory
• https://exchange.xforce.ibmcloud.com/vulnerabilities/49212Third Party Advisory, VDB Entry
• https://www.exploit-db.com/exploits/8241Exploit, Third Party Advisory, VDB Entry
• https://www.redhat.com/archives/fedora-package-announce/2009-March/msg00487.htmlThird Party Advisory
• https://www.redhat.com/archives/fedora-package-announce/2009-March/msg00529.htmlThird Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00003.htmlNot Applicable
• http://secunia.com/advisories/34256Third Party Advisory
• http://secunia.com/advisories/34311Third Party Advisory
• http://secunia.com/advisories/35687Third Party Advisory
• http://security.gentoo.org/glsa/glsa-200907-02.xmlThird Party Advisory
• http://sourceforge.net/project/shownotes.php?release_id=667542&group_id=68846Third Party Advisory
• http://www.osvdb.org/52553Broken Link
• http://www.securityfocus.com/archive/1/501968Exploit, Third Party Advisory, VDB Entry
• http://www.securityfocus.com/bid/34096Exploit, Third Party Advisory, VDB Entry
• http://www.vupen.com/english/advisories/2009/0703Third Party Advisory
• https://exchange.xforce.ibmcloud.com/vulnerabilities/49212Third Party Advisory, VDB Entry
• https://www.exploit-db.com/exploits/8241Exploit, Third Party Advisory, VDB Entry
• https://www.redhat.com/archives/fedora-package-announce/2009-March/msg00487.htmlThird Party Advisory
• https://www.redhat.com/archives/fedora-package-announce/2009-March/msg00529.htmlThird Party Advisory

Published

Jun 3, 2009

Last Modified

Jun 16, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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