description: 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.
metrics:
cvssV3_0: [
version: 3.0
vectorString: CVSS:3.0/AC:H/AV:L/A:H/C:N/I:N/PR:N/S:U/UI:N
attackVector: LOCAL
attackComplexity: HIGH
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
baseScore: 5.1
baseSeverity: MEDIUM
]