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.
References (12)
Core 12
Core References
Third Party Advisory vendor-advisory
x_refsource_debian
https://www.debian.org/security/2019/dsa-4398
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3902-1/
Exploit, Issue Tracking, Vendor Advisory x_refsource_misc
https://bugs.php.net/bug.php?id=77369
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20190321-0001/
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2019/03/msg00043.html
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3922-2/
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3922-3/
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00041.html
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00044.html
Vendor Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2019:2519
Vendor Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2019:3299
Third Party Advisory x_refsource_confirm
https://www.tenable.com/security/tns-2019-07
Scores
CVSS v3
7.5
EPSS
0.0819
EPSS Percentile
92.3%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Details
CWE
CWE-125
Status
published
Products (7)
canonical/ubuntu_linux
12.04
canonical/ubuntu_linux
14.04
canonical/ubuntu_linux
16.04
debian/debian_linux
8.0
debian/debian_linux
9.0
netapp/storage_automation_store
php/php
7.0.0 - 7.1.26
Published
Feb 22, 2019
Tracked Since
Feb 18, 2026