Vulnerability Description
An issue was discovered in PHP before 5.6.40, 7.x before 7.1.26, 7.2.x before 7.2.14, and 7.3.x before 7.3.1. A number of heap-based buffer over-read instances are present in mbstring regular expression functions when supplied with invalid multibyte data. These occur in ext/mbstring/oniguruma/regcomp.c, ext/mbstring/oniguruma/regexec.c, ext/mbstring/oniguruma/regparse.c, ext/mbstring/oniguruma/enc/unicode.c, and ext/mbstring/oniguruma/src/utf32_be.c when a multibyte regular expression pattern contains invalid multibyte sequences.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Php | Php | < 5.6.40 |
| Debian | Debian Linux | 9.0 |
| Canonical | Ubuntu Linux | 12.04 |
| Netapp | Storage Automation Store | - |
| Opensuse | Leap | 42.3 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00083.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00104.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00041.html
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00044.html
- http://www.securityfocus.com/bid/107156Third Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2019:2519
- https://access.redhat.com/errata/RHSA-2019:3299
- https://bugs.php.net/bug.php?id=77370ExploitIssue TrackingPatch
- https://bugs.php.net/bug.php?id=77371ExploitIssue TrackingPatch
- https://bugs.php.net/bug.php?id=77381ExploitIssue TrackingPatch
- https://bugs.php.net/bug.php?id=77382ExploitIssue TrackingPatch
- https://bugs.php.net/bug.php?id=77385ExploitIssue TrackingPatch
- https://bugs.php.net/bug.php?id=77394ExploitIssue TrackingPatch
- https://bugs.php.net/bug.php?id=77418ExploitIssue TrackingPatch
- https://security.netapp.com/advisory/ntap-20190321-0001/PatchThird Party Advisory
FAQ
What is CVE-2019-9023?
CVE-2019-9023 is a vulnerability with a CVSS score of 9.8 (CRITICAL). An issue was discovered in PHP before 5.6.40, 7.x before 7.1.26, 7.2.x before 7.2.14, and 7.3.x before 7.3.1. A number of heap-based buffer over-read instances are present in mbstring regular expressi...
How severe is CVE-2019-9023?
CVE-2019-9023 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2019-9023?
Check the references section above for vendor advisories and patch information. Affected products include: Php Php, Debian Debian Linux, Canonical Ubuntu Linux, Netapp Storage Automation Store, Opensuse Leap.