CVE-2019-9022: Buffer Overflow
First published: Sat Dec 29 2018(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/rh-php71-php | <0:7.1.30-1.el7 | 0:7.1.30-1.el7 |
| redhat/rh-php72-php | <0:7.2.24-1.el7 | 0:7.2.24-1.el7 |
| PHP PHP | >=7.0.0<7.1.26 | |
| PHP PHP | >=7.2.0<7.2.14 | |
| PHP PHP | >=7.3.0<7.3.2 | |
| Debian Debian Linux | =8.0 | |
| Debian Debian Linux | =9.0 | |
| Canonical Ubuntu Linux | =12.04 | |
| Canonical Ubuntu Linux | =14.04 | |
| Canonical Ubuntu Linux | =16.04 | |
| Netapp Storage Automation Store | ||
| PHP PHP | <7.1.26 | 7.1.26 |
| redhat/php | <7.1.26 | 7.1.26 |
| redhat/php | <7.2.14 | 7.2.14 |
| redhat/php | <7.3.1 | 7.3.1 |
| debian/php5 | ||
| debian/php7.0 | ||
| debian/php7.3 |
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2019-9022 https://nvd.nist.gov/vuln/detail/CVE-2019-9022
- https://bugzilla.redhat.com/show_bug.cgi?id=1685412
- https://access.redhat.com/errata/RHSA-2020:1624
- https://access.redhat.com/errata/RHSA-2019:2519
- https://access.redhat.com/errata/RHSA-2019:3299
- https://access.redhat.com/security/cve/cve-2019-9022
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00041.html
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00044.html
- 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
- https://launchpad.net/bugs/cve/CVE-2019-9022
- https://www.php.net/ChangeLog-7.php#7.1.26 (Advisory)
- http://git.php.net/?p=php-src.git;a=commit;h=8d3dfabef459fe7815e8ea2fd68753fd17859d7b
- https://github.com/php/php-src/commit/8d3dfabef459fe7815e8ea2fd68753fd17859d7b
- https://security-tracker.debian.org/tracker/CVE-2019-9022
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9022
- https://nvd.nist.gov/vuln/detail/CVE-2019-9022
- https://ubuntu.com/security/CVE-2019-9022
Parent vulnerabilities
(Appears in the following advisories)
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2019-9022.
What is the severity of CVE-2019-9022?
The severity of CVE-2019-9022 is high, with a severity value of 7.5.
Which software versions are affected by CVE-2019-9022?
PHP versions before 7.1.26, 7.2.14, and 7.3.2 are affected.
How does CVE-2019-9022 impact PHP?
CVE-2019-9022 allows a hostile DNS server to cause PHP to misuse memcpy, leading to read operations going past the buffer allocated for DNS data.
Are there any solutions or fixes available for CVE-2019-9022?
Yes, updating PHP to version 7.1.26, 7.2.14, or 7.3.2 will fix the vulnerability.
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