Denial of service in libnbd



Published: 2022-03-21
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-0485
CWE-ID CWE-388
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		libnbd
Universal components / Libraries / Libraries used by multiple products

Vendor libguestfs

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Error Handling

EUVDB-ID: #VU61494

Risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-0485

CWE-ID: CWE-388 - Error Handling

Exploit availability: No

Description

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

The vulnerability exists due to error handling mechanism within the nbdcopy tool when performing multi-threaded copies using asynchronous nbd calls. This could result in the silent creation of a corrupted destination image.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

libnbd: 1.0.0 - 1.11.7

External links

http://bugzilla.redhat.com/show_bug.cgi?id=2050324


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.



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