Vulnerability identifier: #VU67972
Vulnerability risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-401
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
LibVNCServer
Server applications /
Remote management servers, RDP, SSH
Vendor: LibVNC
Description
The vulnerability allows a remote attacker to perform DoS attack on the target system.
The vulnerability exists due memory leak within the rfbClientCleanup() function. A remote attacker can force the server to leak memory and perform denial of service attack.
Mitigation
Install update from vendor's website.
Vulnerable software versions
LibVNCServer: 0.9.0 - 0.9.13
External links
http://github.com/LibVNC/libvncserver/commit/bef41f6ec4097a8ee094f90a1b34a708fbd757ec
http://lists.debian.org/debian-lts-announce/2022/09/msg00035.html
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.