SUSE update for LibVNCServer

1) Memory leak

EUVDB-ID: #VU67972

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: CVE-2020-29260

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

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

Update the affected package LibVNCServer to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Software Development Kit: 12-SP5

SUSE Linux Enterprise Server for SAP Applications: 12-SP5

SUSE Linux Enterprise Server: 12-SP5

libvncserver0-debuginfo: before 0.9.9-17.41.1

libvncserver0: before 0.9.9-17.41.1

libvncclient0-debuginfo: before 0.9.9-17.41.1

libvncclient0: before 0.9.9-17.41.1

LibVNCServer-devel: before 0.9.9-17.41.1

LibVNCServer-debugsource: before 0.9.9-17.41.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20224330-1/

Q & A

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.