UBUNTU-CVE-2019-9023

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UBUNTU-CVE-2019-9023

Summary:

Details: 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: https://ubuntu.com/security/CVE-2019-9023, https://ubuntu.com/security/notices/USN-3902-1, https://ubuntu.com/security/notices/USN-3902-2, https://www.cve.org/CVERecord?id=CVE-2019-9023