CVE-2019-9022
CVSS v3
7.5
HIGH
EPSS Score
8.2 %
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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.
Technical details
- Published
- 2019-02-22
Frequently asked questions
What is 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. 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.
Is CVE-2019-9022 actively exploited?
Active exploitation of CVE-2019-9022 has not been confirmed. The EPSS score is 8.2%, indicating the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2019-9022?
CVE-2019-9022 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2019-9022 affecting your environment?
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