x11vnc shared-memory permissions may expose or alter screen contents
Original title: USN-9089-1: x11vnc vulnerability
Ubuntu says a local attacker could read sensitive data or change what is displayed through insecure shared-memory segments.
Ubuntu Security Notice USN-9089-1 reports that x11vnc created shared memory segments with insecure permissions. A local attacker could possibly use that to obtain sensitive information or modify screen contents. The notice snippet does not name affected versions, a fix, or a CVE.
- The issue is local and depends on insecure shared-memory permissions.
- Impact described is information disclosure or modification of screen contents.
- No fixed version or CVE appears in the notice snippet.
Impact: Local read of sensitive data or modification of screen contents
| Product | Affected |
|---|---|
| x11vnc | — |
From the original article
It was discovered that x11vnc created shared memory segments with insecure permissions. A local attacker could possibly use this issue to obtain sensitive information or modify screen contents.
ubuntu.com
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