CVE-2015-8381

Severity CVSS v4.0:

Pending analysis

Type:

CWE-119 Buffer Errors

Publication date:

02/12/2015

Last modified:

12/04/2025

Description

The compile_regex function in pcre_compile.c in PCRE before 8.38 and pcre2_compile.c in PCRE2 before 10.2x mishandles the /(?J:(?|(:(?|(?&#39;R&#39;)(\k&#39;R&#39;)|((?&#39;R&#39;)))H&#39;Rk&#39;Rf)|s(?&#39;R&#39;))))/ and /(?J:(?|(:(?|(?&#39;R&#39;)(\z(?|(?&#39;R&#39;)(\k&#39;R&#39;)|((?&#39;R&#39;)))k&#39;R&#39;)|((?&#39;R&#39;)))H&#39;Ak&#39;Rf)|s(?&#39;R&#39;)))/ patterns, and related patterns with certain group references, which allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.

Impact

Vector 2.0

AV:N/AC:L/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical