Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2020-1730 |
CWE-ID | CWE-399 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
redhat-release-virtualization-host (Red Hat package) Operating systems & Components / Operating system package or component imgbased (Red Hat package) Operating systems & Components / Operating system package or component redhat-virtualization-host (Red Hat package) Operating systems & Components / Operating system package or component Red Hat Virtualization Server applications / Virtualization software |
Vendor | Red Hat Inc. |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU26756
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-2020-1730
CWE-ID:
CWE-399 - Resource Management Errors
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper resource management while cleaning the AES-CTR ciphers when closing the connection. A remote attacker can initiate a connection to the client and server that supports AES-CTR ciphers and close the connection before ciphers are initialized, triggering a denial of service condition (service crash). The vulnerability affects both client and server implementations.
Install updates from vendor's website.
redhat-release-virtualization-host (Red Hat package): 4.4.2-1.el8ev
imgbased (Red Hat package): 1.2.12-0.1.el8ev
Red Hat Virtualization: 4
redhat-virtualization-host (Red Hat package): before 4.4.3-20201116.0.el8_3
External linkshttp://access.redhat.com/errata/RHSA-2020:5218
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.