Уязвимость функции do_extuni_no_utf компонента pcre2_jit_compile.c библиотеки регулярных выражений PCRE2, позволяющая нарушителю вызвать отказ в обслуживании

An out-of-bounds read was discovered in PCRE before 10.34 when the pattern \X is JIT compiled and used to match specially crafted subjects in non-UTF mode. Applications that use PCRE to parse untrusted input may be vulnerable to this flaw, which would allow an attacker to crash the application. The flaw occurs in do_extuni_no_utf in pcre2_jit_compile.c.