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Vulnerability record · CVE-2006-6303 · published 6 December 2006

CVE-2006-6303: Yukihiro matsumoto ruby vulnerability

YYukihiro Matsumoto · Ruby

The read_multipart function in cgi.rb in Ruby before 1.8.5-p2 does not properly detect boundaries in MIME multipart content, which allows remote attackers to cause a denial of service (infinite loop) via crafted HTTP requests, a different issue than CVE-2006-5467.

5.0 CVSS 2.0 Medium EPSS 3.8% · top 10.4% CWE-399 · CWE-399
5.0CVSS 2.0 base score
3.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
48References
16 Jun 2026Last modified by NVD

Description

The read_multipart function in cgi.rb in Ruby before 1.8.5-p2 does not properly detect boundaries in MIME multipart content, which allows remote attackers to cause a denial of service (infinite loop) via crafted HTTP requests, a different issue than CVE-2006-5467.

AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://bugs.gentoo.org/show_bug.cgi?id=157048 Patch
http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=218287 Patch
http://docs.info.apple.com/article.html?artnum=305530
http://jvn.jp/jp/JVN%2384798830/index.html
http://lists.apple.com/archives/security-announce/2007/May/msg00004.html
http://secunia.com/advisories/23165
http://secunia.com/advisories/23268
http://secunia.com/advisories/23454
http://secunia.com/advisories/25402
http://secunia.com/advisories/27576
http://secunia.com/advisories/31090
http://security.gentoo.org/glsa/glsa-200612-21.xml
http://securitytracker.com/id?1017363
http://www.mandriva.com/security/advisories?name=MDKSA-2006:225
http://www.novell.com/linux/security/advisories/2007_4_sr.html
http://www.redhat.com/support/errata/RHSA-2007-0961.html
http://www.ruby-lang.org/cgi-bin/cvsweb.cgi/ruby/lib/cgi.rb.diff?f=h&only_with_tag=MAIN&r1=text&tr1=1.92&r2=text&tr2=1.9 Patch
http://www.ruby-lang.org/en/news/2006/12/04/another-dos-vulnerability-in-cgi-library/ Patch
http://www.securityfocus.com/bid/21441
http://www.ubuntu.com/usn/usn-394-1
http://www.vupen.com/english/advisories/2006/4855
http://www.vupen.com/english/advisories/2007/1939
https://exchange.xforce.ibmcloud.com/vulnerabilities/30734
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10529
http://bugs.gentoo.org/show_bug.cgi?id=157048 Patch
http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=218287 Patch
http://docs.info.apple.com/article.html?artnum=305530
http://jvn.jp/jp/JVN%2384798830/index.html
http://lists.apple.com/archives/security-announce/2007/May/msg00004.html
http://secunia.com/advisories/23165
http://secunia.com/advisories/23268
http://secunia.com/advisories/23454
http://secunia.com/advisories/25402
http://secunia.com/advisories/27576
http://secunia.com/advisories/31090
http://security.gentoo.org/glsa/glsa-200612-21.xml
http://securitytracker.com/id?1017363
http://www.mandriva.com/security/advisories?name=MDKSA-2006:225
http://www.novell.com/linux/security/advisories/2007_4_sr.html
http://www.redhat.com/support/errata/RHSA-2007-0961.html

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Source: NIST National Vulnerability Database (record CVE-2006-6303), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.