CVE-2018-7225
high-risk
Published 2018-02-19
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.
Do I need to act?
~
3.3% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10
Critical
NETWORK
/ LOW complexity
Affected Products (14)
Affected Vendors
References (28)
Third Party Advisory
http://www.securityfocus.com/bid/103107
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1055
Third Party Advisory
https://github.com/LibVNC/libvncserver/issues/218
Third Party Advisory
https://usn.ubuntu.com/3618-1/
Third Party Advisory
https://www.debian.org/security/2018/dsa-4221
Third Party Advisory
http://www.securityfocus.com/bid/103107
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1055
Third Party Advisory
https://github.com/LibVNC/libvncserver/issues/218
and 8 more references
57
/ 100
high-risk
Severity
32/34 · Critical
Exploitability
7/34 · Low
Exposure
18/34 · Moderate