CVE-2019-9023 - CVE House

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Status published Critical CVE-2019-9023

An issue was discovered in PHP before 5.6.40, 7.x before...

9.8 CVSS

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

php

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Affected Software

php, debian linux, ubuntu linux, storage automation store, leap

Vulnerable Versions:

0, 7.0.0, 7.2.0, 7.3.0, 9.0, 12.04, 14.04, 16.04, 42.3

Timeline

Official Publish: February 22nd, 2019

Last Modified: August 4th, 2024

Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.