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CVE-2009-3627

4.3 · MEDIUM

The decode_entities function in util.c in HTML-Parser before 3.63 allows context-dependent attackers to cause a denial of service (infinite loop) via an incomplete SGML numeric character reference,…

Published Oct 29, 2009derrick_oswaldCWE-20EPSS 1.73%

Overview

CVE-2009-3627 is a medium-severity vulnerability affecting derrick_oswald html-parser. It was published on October 29, 2009 and has a CVSS 2.0 base score of 4.3 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The decode_entities function in util.c in HTML-Parser before 3.63 allows context-dependent attackers to cause a denial of service (infinite loop) via an incomplete SGML numeric character reference, which triggers generation of an invalid UTF-8 character.

Remediation

Check the references section for vendor advisories and patches from derrick_oswald. Update html-parser to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
derrick_oswaldhtml-parser0Affected

References

GitHubgithub.com/gisle/html-parser/commit/b9aae1e43eb2c8e989510187cff0ba3e996f9a4cRefsecunia.com/advisories/37155Refwww.openwall.com/lists/oss-security/2009/10/23/9Refwww.securityfocus.com/bid/36807Refwww.vupen.com/english/advisories/2009/3022Refbugzilla.redhat.com/show_bug.cgi?id=530604Refexchange.xforce.ibmcloud.com/vulnerabilities/53941Refissues.apache.org/SpamAssassin/show_bug.cgi?id=6225GitHubgithub.com/gisle/html-parser/commit/b9aae1e43eb2c8e989510187cff0ba3e996f9a4cRefsecunia.com/advisories/37155

How CyberStrike helps

Frequently asked questions

What is CVE-2009-3627?

CVE-2009-3627 is a medium-severity vulnerability affecting derrick_oswald html-parser. It was published on October 29, 2009 and has a CVSS 2.0 base score of 4.3 (MEDIUM).

How severe is CVE-2009-3627?

This vulnerability has a CVSS 2.0 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2009-3627?

Check the references section for vendor advisories and patches from derrick_oswald. Update html-parser to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2009-3627?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2009-3627 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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