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Ubuntu: USN-4407-1 (CVE-2017-18922): LibVNCServer vulnerabilities

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Ubuntu: USN-4407-1 (CVE-2017-18922): LibVNCServer vulnerabilities

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
06/30/2020
Created
08/07/2020
Added
08/05/2020
Modified
05/01/2023

Description

It was discovered that websockets.c in LibVNCServer prior to 0.9.12 did not properly decode certain WebSocket frames. A malicious attacker could exploit this by sending specially crafted WebSocket frames to a server, causing a heap-based buffer overflow.

Solution(s)

  • ubuntu-upgrade-libvncclient1
  • ubuntu-upgrade-libvncserver1

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