// For flags

CVE-2015-8386

pcre: Buffer overflow caused by lookbehind assertion (8.38/6)

Severity Score

9.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

PCRE before 8.38 mishandles the interaction of lookbehind assertions and mutually recursive subpatterns, which allows remote attackers to cause a denial of service (buffer overflow) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.

PCRE en versiones anteriores a 8.38 no maneja correctamente la interacción de aserciones lookbehind y de subpatrones mutuamente recursivos, lo que permite a atacantes remotos causar una denegación de servicio (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.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
Attack Vector
Network
Attack Complexity
High
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2015-12-01 CVE Reserved
  • 2015-12-02 CVE Published
  • 2024-08-06 CVE Updated
  • 2024-08-08 EPSS 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
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
Fedoraproject
Search vendor "Fedoraproject"
Fedora
Search vendor "Fedoraproject" for product "Fedora"
22
Search vendor "Fedoraproject" for product "Fedora" and version "22"
-
Affected
Oracle
Search vendor "Oracle"
Linux
Search vendor "Oracle" for product "Linux"
7
Search vendor "Oracle" for product "Linux" and version "7"
-
Affected
Php
Search vendor "Php"
Php
Search vendor "Php" for product "Php"
>= 5.5.0 < 5.5.32
Search vendor "Php" for product "Php" and version " >= 5.5.0 < 5.5.32"
-
Affected
Php
Search vendor "Php"
Php
Search vendor "Php" for product "Php"
>= 5.6.0 < 5.6.18
Search vendor "Php" for product "Php" and version " >= 5.6.0 < 5.6.18"
-
Affected
Php
Search vendor "Php"
Php
Search vendor "Php" for product "Php"
>= 7.0.0 < 7.0.3
Search vendor "Php" for product "Php" and version " >= 7.0.0 < 7.0.3"
-
Affected