Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2015-3217

Severity CVSS v4.0:
Pending analysis
Type:
CWE-119 Buffer Errors
Publication date:
13/12/2016
Last modified:
12/04/2025

Description

PCRE 7.8 and 8.32 through 8.37, and PCRE2 10.10 mishandle group empty matches, which might allow remote attackers to cause a denial of service (stack-based buffer overflow) via a crafted regular expression, as demonstrated by /^(?:(?(1)\\.|([^\\\\W_])?)+)+$/.

Impact

Vector 3.x
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
7.50
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

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

Base Score 2.0
5.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:pcre:pcre2:10.10:*:*:*:*:*:*:*
cpe:2.3:a:pcre:pcre:7.8:*:*:*:*:*:*:*
cpe:2.3:a:pcre:pcre:8.32:*:*:*:*:*:*:*
cpe:2.3:a:pcre:pcre:8.33:*:*:*:*:*:*:*
cpe:2.3:a:pcre:pcre:8.34:*:*:*:*:*:*:*
cpe:2.3:a:pcre:pcre:8.35:*:*:*:*:*:*:*
cpe:2.3:a:pcre:pcre:8.36:*:*:*:*:*:*:*
cpe:2.3:a:pcre:pcre:8.37:*:*:*:*:*:*:*
cpe:2.3:a:ibm:powerkvm:2.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:powerkvm:3.1:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools