CVE-2015-3217

pcre: stack overflow caused by mishandled group empty match (8.38/11)

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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_])?)+)+$/.

PCRE 7.8 y 8.32 hasta la versión 8.37 y PCRE2 10.10 no maneja adecuadamente las partidas de grupo vacías, lo que podrían permitir a atacantes remotos provocar una denegación de servicio (desbordamientos de búfer basado en pila) a través de una expresión regular manipulada, según lo demostrado por /^(?:(?(1)\\.|([^\\\\W_])?)+)+$/.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-04-10 CVE Reserved
2016-05-12 CVE Published
2024-03-15 EPSS Updated
2024-08-06 CVE Updated
2024-08-06 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-674: Uncontrolled Recursion

CAPEC

References (11)

URL	Tag	Source
http://www-01.ibm.com/support/docview.wss?uid=isg3T1023886	Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/06/03/7	Mailing List
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html	X_refsource_confirm
http://www.securityfocus.com/bid/75018	Third Party Advisory

URL	Date	SRC
https://bugs.exim.org/show_bug.cgi?id=1638	2024-08-06

URL	Date	SRC
http://vcs.pcre.org/pcre?view=revision&revision=1566	2018-05-18

URL	Date	SRC
http://rhn.redhat.com/errata/RHSA-2016-1025.html	2018-05-18
http://rhn.redhat.com/errata/RHSA-2016-2750.html	2018-05-18
https://access.redhat.com/errata/RHSA-2016:1132	2018-05-18
https://bugzilla.redhat.com/show_bug.cgi?id=1228283	2016-11-15
https://access.redhat.com/security/cve/CVE-2015-3217	2016-11-15

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Pcre Search vendor "Pcre"		Pcre2 Search vendor "Pcre" for product "Pcre2"				10.10 Search vendor "Pcre" for product "Pcre2" and version "10.10"		-		Affected
Pcre Search vendor "Pcre"		Pcre Search vendor "Pcre" for product "Pcre"				7.8 Search vendor "Pcre" for product "Pcre" and version "7.8"		-		Affected
Pcre Search vendor "Pcre"		Pcre Search vendor "Pcre" for product "Pcre"				8.32 Search vendor "Pcre" for product "Pcre" and version "8.32"		-		Affected
Pcre Search vendor "Pcre"		Pcre Search vendor "Pcre" for product "Pcre"				8.33 Search vendor "Pcre" for product "Pcre" and version "8.33"		-		Affected
Pcre Search vendor "Pcre"		Pcre Search vendor "Pcre" for product "Pcre"				8.34 Search vendor "Pcre" for product "Pcre" and version "8.34"		-		Affected
Pcre Search vendor "Pcre"		Pcre Search vendor "Pcre" for product "Pcre"				8.35 Search vendor "Pcre" for product "Pcre" and version "8.35"		-		Affected
Pcre Search vendor "Pcre"		Pcre Search vendor "Pcre" for product "Pcre"				8.36 Search vendor "Pcre" for product "Pcre" and version "8.36"		-		Affected
Pcre Search vendor "Pcre"		Pcre Search vendor "Pcre" for product "Pcre"				8.37 Search vendor "Pcre" for product "Pcre" and version "8.37"		-		Affected
Ibm Search vendor "Ibm"		Powerkvm Search vendor "Ibm" for product "Powerkvm"				2.1 Search vendor "Ibm" for product "Powerkvm" and version "2.1"		-		Affected
Ibm Search vendor "Ibm"		Powerkvm Search vendor "Ibm" for product "Powerkvm"				3.1 Search vendor "Ibm" for product "Powerkvm" and version "3.1"		-		Affected