What’s Vulnerable › Vulnerabilities

CVE-2009-3896

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 10.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2009-11-24 · updated 2026-06-16
• Weakness: CWE-119

Description

src/http/ngx_http_parse.c in nginx (aka Engine X) 0.1.0 through 0.4.14, 0.5.x before 0.5.38, 0.6.x before 0.6.39, 0.7.x before 0.7.62, and 0.8.x before 0.8.14 allows remote attackers to cause a denial of service (NULL pointer dereference and worker process crash) via a long URI.

Affected products

• nginx: 0.1.0, 0.1.1, 0.1.2, 0.1.3, 0.1.4, 0.1.5 (+276)
• nginx: 0.6.1516

References

• http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=552035
• http://marc.info/?l=nginx&m=125692080328141&w=2
• http://secunia.com/advisories/48577
• http://security.debian.org/pool/updates/main/n/nginx/nginx_0.4.13-2+etch3.diff.gz
• http://security.gentoo.org/glsa/glsa-201203-22.xml
• http://sysoev.ru/nginx/patch.null.pointer.txt
• http://www.debian.org/security/2009/dsa-1920
• http://www.openwall.com/lists/oss-security/2009/11/20/1
• http://www.openwall.com/lists/oss-security/2009/11/20/6
• http://www.openwall.com/lists/oss-security/2009/11/23/10
• http://www.securityfocus.com/bid/36839
• https://bugzilla.redhat.com/show_bug.cgi?id=539565

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