Integer overflow in Vncterm Project
CVE-2018-7226
An issue was discovered in vcSetXCutTextProc() in VNConsole.c in LinuxVNC and VNCommand from the LibVNC/vncterm distribution through 0.9.10. Missing sanitization of the client-specified message length may cause integer overflow or possibly have unspecified other impact via a specially crafted VNC packet.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.023 (82.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 82.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/LibVNC/vncterm/issues/6 (Patch, Third Party Advisory)
- openwall.com/lists/oss-security/2018/02/18/2 (Mailing List)
- security.gentoo.org/glsa/201908-05 (vendor-advisory)
Frequently asked questions
- What is CVE-2018-7226?
- CVE-2018-7226 is a critical-severity vulnerability in Vncterm Project, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2018-02-19.
- How severe is CVE-2018-7226?
- Critical severity. CVSS v3 base score is 9.8 out of 10.