CVE-2019-9022

Name	CVE-2019-9022
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.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
References	DLA-1741-1, DSA-4398-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
php7.3 (PTS)	buster	7.3.31-1~deb10u1	fixed
	buster (security)	7.3.31-1~deb10u3	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin
php5	source	jessie	5.6.40+dfsg-0+deb8u2	DLA-1741-1
php5	source	(unstable)	(unfixed)
php7.0	source	stretch	7.0.33-0+deb9u2	DSA-4398-1
php7.0	source	(unstable)	(unfixed)
php7.3	source	(unstable)	7.3.2-1

Notes

Fixed in 7.1.26, 7.2.14, 7.3.2
PHP Bug: https://bugs.php.net/bug.php?id=77369
https://github.com/php/php-src/commit/8d3dfabef459fe7815e8ea2fd68753fd17859d7b (7.1)