An issue was discovered in LibVNCServer through 0.9.11. rfbProcessClientNormalMessage() in...
Vulnerability Description
An issue was discovered in LibVNCServer through 0.9.11. rfbProcessClientNormalMessage() in rfbserver.c does not sanitize msg.cct.length, leading to access to uninitialized and potentially sensitive data or possibly unspecified other impact (e.g., an integer overflow) via specially crafted VNC packets.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://www.debian.org/security/2018/dsa-4221
- https://usn.ubuntu.com/3618-1/
- https://github.com/LibVNC/libvncserver/issues/218
- https://lists.debian.org/debian-lts-announce/2018/03/msg00035.html
- http://www.securityfocus.com/bid/103107
- http://www.openwall.com/lists/oss-security/2018/02/18/1
- https://access.redhat.com/errata/RHSA-2018:1055
- https://security.gentoo.org/glsa/201908-05
- https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
- https://lists.debian.org/debian-lts-announce/2019/11/msg00032.html
- https://lists.debian.org/debian-lts-announce/2019/12/msg00028.html
- https://usn.ubuntu.com/4547-1/
- https://usn.ubuntu.com/4573-1/
- https://usn.ubuntu.com/4587-1/
More from libvncserver project
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libvncserver project
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Timeline
CVSS Vectors
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.