Critical severity · published Feb 19, 2018
CVE-2018-7225
An issue was discovered in LibVNCServer through 0.9.11
9.8
CVSS
6.1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)6.1% · higher than 93% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
7.0; 8.0; 9.0 · source: NVD
EL
Enterprise Linux Desktop · Redhat
7.0 · source: NVD
EL
Enterprise Linux Server · Redhat
7.0 · source: NVD
EL
Enterprise Linux Server Aus · Redhat
7.6 · source: NVD
EL
Enterprise Linux Server Eus · Redhat
7.5; 7.6 · source: NVD
EL
Enterprise Linux Server Tus · Redhat
7.6 · source: NVD
EL
Enterprise Linux Workstation · Redhat
7.0 · source: NVD
LI
Libvncserver · Libvncserver Project
through 0.9.11 · source: NVD
UL
Ubuntu Linux · Canonical
14.04; 16.04; 17.10 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-7225
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-7225
Exploit
http://www.openwall.com/lists/oss-security/2018/02/18/1
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
Mailing List
https://lists.debian.org/debian-lts-announce/2018/03/msg00035.html
lists.debian.org
https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
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