CVE-2015-5073

pcre: buffer overflow for forward reference within backward assertion with excess closing parenthesis (8.38/18)

Severity Score

9.1

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Heap-based buffer overflow in the find_fixedlength function in pcre_compile.c in PCRE before 8.38 allows remote attackers to cause a denial of service (crash) or obtain sensitive information from heap memory and possibly bypass the ASLR protection mechanism via a crafted regular expression with an excess closing parenthesis.

Desbordamiento de búfer basado en memoria dinámica en la función find_fixedlength en pcre_compile.c en PCRE en versiones anteriores a 8.38 permite a atacantes remotos provocar una denegación de servicio (caída) u obtener información sensible de la memoria dinámica y posiblemente eludir el mecanismo de protección ASLR a través de una expresión regular manipulada con un paréntesis de cierre excesivo.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

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

2015-06-26 CVE Reserved
2015-08-03 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-122: Heap-based Buffer Overflow
CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

CAPEC

References (15)

URL	Tag	Source
http://www-01.ibm.com/support/docview.wss?uid=isg3T1023886	Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/06/26/1	Mailing List
http://www.openwall.com/lists/oss-security/2015/06/26/3	Mailing List
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html	X_refsource_confirm
http://www.securityfocus.com/bid/75430	Third Party Advisory
http://www.securitytracker.com/id/1033154	Third Party Advisory

URL	Date	SRC
http://vcs.pcre.org/pcre?view=revision&revision=1571	2024-08-06
https://bugs.exim.org/show_bug.cgi?id=1651	2024-08-06

URL	Date	SRC

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
http://vcs.pcre.org/pcre/code/trunk/ChangeLog?revision=1609&view=markup	2018-05-18
https://access.redhat.com/errata/RHSA-2016:1132	2018-05-18
https://security.gentoo.org/glsa/201607-02	2018-05-18
https://access.redhat.com/security/cve/CVE-2015-5073	2016-11-15
https://bugzilla.redhat.com/show_bug.cgi?id=1237223	2016-11-15

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
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
Pcre Search vendor "Pcre"		Pcre Search vendor "Pcre" for product "Pcre"				<= 8.37 Search vendor "Pcre" for product "Pcre" and version " <= 8.37"		-		Affected