CVE-2019-9023

HIGH

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.

References

http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00083.html

http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00104.html

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/107156

https://access.redhat.com/errata/RHSA-2019:2519

https://access.redhat.com/errata/RHSA-2019:3299

https://bugs.php.net/bug.php?id=77370

https://bugs.php.net/bug.php?id=77371

https://bugs.php.net/bug.php?id=77381

https://bugs.php.net/bug.php?id=77382

https://bugs.php.net/bug.php?id=77385

https://bugs.php.net/bug.php?id=77394

https://bugs.php.net/bug.php?id=77418

https://security.netapp.com/advisory/ntap-20190321-0001/

https://support.f5.com/csp/article/K06372014

https://usn.ubuntu.com/3902-1/

https://usn.ubuntu.com/3902-2/

https://www.debian.org/security/2019/dsa-4398

Details

Source: MITRE

Published: 2019-02-22

Updated: 2019-06-18

Type: CWE-125

Risk Information

CVSS v2.0

Base Score: 7.5

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

Impact Score: 6.4

Exploitability Score: 10

Severity: HIGH

CVSS v3.0

Base Score: 9.8

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

Impact Score: 5.9

Exploitability Score: 3.9

Severity: CRITICAL