Vulnerability identifier: #VU9333
Vulnerability risk: Low
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-264
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
OpenSSH
Server applications /
Remote management servers, RDP, SSH
Vendor: OpenSSH
Description
The vulnerability allows a remote authenticated attacker to cause DoS condition on the target system.
The weakness exists in the process_open() function due to improper prevention of write operations in read-only mode. A remote attacker can create zero-length files and cause the service to crash.
Successful exploitation of the vulnerability results in denial of service.
Mitigation
Update to version 7.6.
Vulnerable software versions
OpenSSH: 3.6.1p2 - 7.5p1
External links
http://www.openssh.com/txt/release-7.6
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.