CVE-2017-5581 Information

Description

Buffer overflow in the ModifiablePixelBuffer::fillRect function in TigerVNC before 1.7.1 allows remote servers to execute arbitrary code via an RRE message with subrectangle outside framebuffer boundaries.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

http://rhn.redhat.com/errata/RHSA-2017-0630.html http://www.openwall.com/lists/oss-security/2017/01/22/1 http://www.openwall.com/lists/oss-security/2017/01/25/6 http://www.securityfocus.com/bid/95789 https://access.redhat.com/errata/RHSA-2017:2000 https://github.com/TigerVNC/tigervnc/commit/18c020124ff1b2441f714da2017f63dba50720ba https://github.com/TigerVNC/tigervnc/pull/399 https://github.com/TigerVNC/tigervnc/releases/tag/v1.7.1 https://security.gentoo.org/glsa/201702-19

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8