CVE-2019-15695 Information

Description

TigerVNC version prior to 1.10.1 is vulnerable to stack buffer overflow which could be triggered from CMsgReader::readSetCursor. This vulnerability occurs due to insufficient sanitization of PixelFormat. Since remote attacker can choose offset from start of the buffer to start writing his values exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Reference

http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00039.html https://github.com/CendioOssman/tigervnc/commit/05e28490873a861379c943bf616614b78b558b89 https://github.com/TigerVNC/tigervnc/releases/tag/v1.10.1 https://www.openwall.com/lists/oss-security/2019/12/20/2

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction Required

HIGH

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.2