Stack Buffer Overflow Vulnerability in TigerVNC Software by TigerVNC
CVE-2019-15695

7.2HIGH

Key Information:

Vendor
Kaspersky
Status
Tigervnc
Vendor
CVE Published:
26 December 2019

Summary

TigerVNC, an open-source implementation of VNC server and client, is prone to a stack buffer overflow vulnerability in versions prior to 1.10.1. The flaw arises from inadequate sanitization of the PixelFormat data in CMsgReader::readSetCursor function. This weakness allows an attacker to manipulate the buffer offset during network connectivity, leading to potential remote code execution. Proper updating to version 1.10.1 or later is crucial to mitigate this risk.

Affected Version(s)

TigerVNC 1.10.0

References

https://github.com/TigerVNC/tigervnc/releases/tag/v1.10.1
x_refsource_MISC
https://www.openwall.com/lists/oss-security/2019/12/20/2
mailing-listx_refsource_MLIST
https://github.com/CendioOssman/tigervnc/commit/05e284908...
x_refsource_MISC

CVSS V3.1

Score:
7.2
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.