CVE-2019-9022

high

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

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

Details

Source: MITRE

Published: 2019-02-22

Updated: 2019-06-18

Type: CWE-125

Risk Information

CVSS v2

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH