IBM VIOS update for bind



Published: 2020-12-19
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2020-8622
CWE ID CWE-617
Exploitation vector Network
Public exploit N/A
Vulnerable software
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IBM VIOS
Server applications / Application servers

Vendor IBM Corporation

Security Advisory

This security advisory describes one medium risk vulnerability.

1) Reachable Assertion

Risk: Medium

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] [PCI]

CVE-ID: CVE-2020-8622

CWE-ID: CWE-617 - Reachable Assertion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a reachable assertion when handling TSIG-signed request. An attacker on the network path for a TSIG-signed request, or operating the server receiving the TSIG-signed request, could send a truncated response to that request, triggering an assertion failure, causing the server to exit.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

IBM VIOS: 3.1.0, 3.1.1

CPE External links

http://aix.software.ibm.com/aix/efixes/security/bind_advisory18.asc

Q & A

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.



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