PT-2019-5754 · Tigervnc+4 · Tigervnc+4
Pavel Cheremushkin
·
Published
2019-12-20
·
Updated
2024-06-15
·
CVE-2019-15695
CVSS v3.1
7.2
High
| Vector | AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
TigerVNC versions prior to 1.10.1
Description
The issue is related to insufficient checking of unusual or exceptional states in the CMsgReader::readSetCursor function of the VNC TigerVNC software. This could allow a remote attacker to access confidential data, compromise its integrity, and cause a denial of service. The vulnerability occurs due to insufficient sanitization of
PixelFormat. Exploitation could potentially result in remote code execution, as an attacker can choose the offset from the start of the buffer to start writing their values. This attack appears to be exploitable via network connectivity.Recommendations
For versions prior to 1.10.1, update to version 1.10.1 or later to resolve the issue.
As a temporary workaround, consider restricting network connectivity to minimize the risk of exploitation.
Exploit
Fix
RCE
Stack Overflow
Memory Corruption
Improper Check for Exceptional Conditions
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Related Identifiers
Affected Products
Alt Linux
Centos
Red Hat
Suse
Tigervnc