VulnerabilityModified
CVE-2018-7226
Missing sanitization of the client-specified message length may cause integer overflow or possibly have unspecified other impact via a specially crafted VNC packet.
CRITICAL 9.8EPSS 2.28%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.28%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.28% probability · 82th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-190
- Affected
- vncterm project/vncterm
- Source
- cve@mitre.org
References
- http://openwall.com/lists/oss-security/2018/02/18/2Mailing List
- https://github.com/LibVNC/vncterm/issues/6Patch, Third Party Advisory
- https://security.gentoo.org/glsa/201908-05
- http://openwall.com/lists/oss-security/2018/02/18/2Mailing List
- https://github.com/LibVNC/vncterm/issues/6Patch, Third Party Advisory
- https://security.gentoo.org/glsa/201908-05
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.