#VU61494 Error Handling in libnbd - CVE-2022-0485

Vulnerability identifier: #VU61494

Vulnerability risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-0485

CWE-ID: CWE-388

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
libnbd
Universal components / Libraries / Libraries used by multiple products

Vendor: libguestfs

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 - 1.0.3, 1.1.1 - 1.11.7, 1.2.0 - 1.2.4, 1.3.1 - 1.3.12, 1.4.0 - 1.4.2, 1.5.1 - 1.5.9, 1.6.0 - 1.6.6, 1.7.1 - 1.7.12, 1.8.0 - 1.8.7, 1.9.1 - 1.9.6

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External links
https://bugzilla.redhat.com/show_bug.cgi?id=2050324

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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.