What’s Vulnerable › Vulnerabilities

CVE-2019-9022

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-02-22 · updated 2026-06-17
• Weakness: CWE-125

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.

Affected products

• Canonical Ubuntu Linux: 12.04, 14.04, 16.04
• Debian Linux: 8.0, 9.0
• NetApp Storage Automation Store: all versions
• PHP: from 7.0.0 before 7.1.26; from 7.2.0 before 7.2.14; from 7.3.0 before 7.3.2 — fixed in 7.1.26, 7.2.14, 7.3.2

How to fix

Upgrade to a fixed version: PHP 7.1.26, 7.2.14, 7.3.2. Check the vendor advisory for mitigations.

References

• 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://bugs.php.net/bug.php?id=77369
• https://lists.debian.org/debian-lts-announce/2019/03/msg00043.html
• https://security.netapp.com/advisory/ntap-20190321-0001/
• https://usn.ubuntu.com/3902-1/
• https://usn.ubuntu.com/3922-2/
• https://usn.ubuntu.com/3922-3/
• https://www.debian.org/security/2019/dsa-4398
• https://www.tenable.com/security/tns-2019-07

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