CVE-2017-7246

pcre: stack-based buffer overflow write in pcre32_copy_substring

Severity Score

7.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Stack-based buffer overflow in the pcre32_copy_substring function in pcre_get.c in libpcre1 in PCRE 8.40 allows remote attackers to cause a denial of service (WRITE of size 268) or possibly have unspecified other impact via a crafted file.

Desbordamiento de búfer basado en pila en la función pcre32_copy_substring en pcre_get.c en libpcre1 en PCRE 8.40 permite a atacantes remotos provocar una denegación de servicio (WRITE de tamaño 268) o posiblemente tener otro impacto no especificado a través de un archivo manipulado.

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

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

2017-03-23 CVE Reserved
2017-03-23 CVE Published
2023-08-08 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-20: Improper Input Validation
CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

CAPEC

References (6)

URL	Tag	Source
http://www.securityfocus.com/bid/97067	Third Party Advisory
https://blogs.gentoo.org/ago/2017/03/20/libpcre-two-stack-based-buffer-overflow-write-in-pcre32_copy_substring-pcre_get-c	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2018:2486	2018-08-17
https://security.gentoo.org/glsa/201710-25	2018-08-17
https://access.redhat.com/security/cve/CVE-2017-7246	2018-08-16
https://bugzilla.redhat.com/show_bug.cgi?id=1437369	2018-08-16

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Pcre Search vendor "Pcre"		Pcre Search vendor "Pcre" for product "Pcre"				8.40 Search vendor "Pcre" for product "Pcre" and version "8.40"		-		Affected