Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2017-7523

Severity CVSS v4.0:
Pending analysis
Type:
CWE-787 Out-of-bounds Write
Publication date:
21/07/2017
Last modified:
20/04/2025

Description

Cygwin versions 1.7.2 up to and including 1.8.0 are vulnerable to buffer overflow vulnerability in wcsxfrm/wcsxfrm_l functions resulting into denial-of-service by crashing the process or potential hijack of the process running with administrative privileges triggered by specially crafted input string.

Impact

Vector 3.x
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
7.50
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Physical

Base Score 2.0
5.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:cygwin:cygwin:1.7.2:*:*:*:*:*:*:*
cpe:2.3:a:cygwin:cygwin:1.7.3:*:*:*:*:*:*:*
cpe:2.3:a:cygwin:cygwin:1.7.5:*:*:*:*:*:*:*
cpe:2.3:a:cygwin:cygwin:1.7.6:*:*:*:*:*:*:*
cpe:2.3:a:cygwin:cygwin:1.7.7:*:*:*:*:*:*:*
cpe:2.3:a:cygwin:cygwin:1.7.8:*:*:*:*:*:*:*
cpe:2.3:a:cygwin:cygwin:1.7.9:*:*:*:*:*:*:*
cpe:2.3:a:cygwin:cygwin:1.7.10:*:*:*:*:*:*:*
cpe:2.3:a:cygwin:cygwin:1.7.11:*:*:*:*:*:*:*
cpe:2.3:a:cygwin:cygwin:1.7.12:*:*:*:*:*:*:*
cpe:2.3:a:cygwin:cygwin:1.7.13:*:*:*:*:*:*:*
cpe:2.3:a:cygwin:cygwin:1.7.14:*:*:*:*:*:*:*
cpe:2.3:a:cygwin:cygwin:1.7.15:*:*:*:*:*:*:*
cpe:2.3:a:cygwin:cygwin:1.7.16:*:*:*:*:*:*:*
cpe:2.3:a:cygwin:cygwin:1.7.17:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools