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CVE-2017-7393

Good to know:

Date: March 31, 2017

In TigerVNC 1.7.1 (VNCSConnectionST.cxx VNCSConnectionST::fence), an authenticated client can cause a double free, leading to denial of service or potentially code execution.

Language: C++

Severity Score

8.8

Related Resources (7)

Url: https://nvd.nist.gov/vuln/detail/CVE-2017-7393

Url: http://www.securityfocus.com/bid/97305

Url: https://github.com/TigerVNC/tigervnc/pull/438

Url: https://access.redhat.com/security/cve/CVE-2017-7393

Url: https://security.gentoo.org/glsa/201801-13

Url: https://access.redhat.com/errata/RHSA-2017:2000

Url: https://www.mend.io/vulnerability-database/CVE-2017-7393

Severity Score

8.8

Weakness Type (CWE)

Double Free

CWE-415

Top Fix

Upgrade Version

Upgrade to version v1.7.90

CVSS v3.1

Base Score:	8.8
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	LOW
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	HIGH
Integrity (I):	HIGH
Availability (A):	HIGH

CVSS v2

Base Score:	6.5
Access Vector (AV):	NETWORK
Access Complexity (AC):	LOW
Authentication (AU):	SINGLE
Confidentiality (C):	PARTIAL
Integrity (I):	PARTIAL
Availability (A):	PARTIAL
Additional information:

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