CVE-2015-8392

pcre: buffer overflow caused by patterns with duplicated named groups with (?| (8.38/27)

Severity Score

7.5

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

PCRE before 8.38 mishandles certain instances of the (?| substring, which allows remote attackers to cause a denial of service (unintended recursion and buffer overflow) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror, a related issue to CVE-2015-8384 and CVE-2015-8395.

PCRE en versiones anteriores a 8.38 no maneja correctamente ciertas instancias de la subcadena (?| , lo que permite a atacantes remotos causar una denegación de servicio (recursión no intencionada y desbordamiento de buffer) o posiblemente tener otro impacto no especificado a través de una expresión regular manipulada, según lo demostrado por un objeto JavaScript RegExp encontrado por Konqueror, un problema relacionado con CVE-2015-8384 y CVE-2015-8395.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2015-12-01 CVE Reserved
2015-12-02 CVE Published
2023-03-07 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CAPEC

References (8)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2015/11/29/1	Mailing List
https://bto.bluecoat.com/security-advisory/sa128	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://rhn.redhat.com/errata/RHSA-2016-2750.html	2018-01-05
http://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markup	2018-01-05
https://access.redhat.com/errata/RHSA-2016:1132	2018-01-05
https://security.gentoo.org/glsa/201607-02	2018-01-05
https://access.redhat.com/security/cve/CVE-2015-8392	2016-11-15
https://bugzilla.redhat.com/show_bug.cgi?id=1287690	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"		Perl Compatible Regular Expression Library Search vendor "Pcre" for product "Perl Compatible Regular Expression Library"				<= 8.37 Search vendor "Pcre" for product "Perl Compatible Regular Expression Library" and version " <= 8.37"		-		Affected