PT-2023-12177 · Hyperkit · Hyperkit

Agustin Gianni · Publicado 2023-02-17 · Atualizado 2023-02-28 · CVE-2021-32843

Positive Technologies (AI Summary)

CVSS v3.1

6.2

Média

Vetor base

AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions HyperKit versions 0.20210107 and prior

Description HyperKit is a toolkit for embedding hypervisor capabilities in an application. In the affected versions, virtio.c has a call to vc cfgread that does not check for null, which can cause the host to crash when called. This issue may lead to a guest crashing the host, resulting in a denial of service.

Recommendations For HyperKit versions 0.20210107 and prior, update to a version that includes the fix committed in df0e46c7dbfd81a957d85e449ba41b52f6f7beb4 to resolve the issue. As a temporary workaround, consider restricting access to the virtio.c file or disabling the vc cfgread function to minimize the risk of exploitation.

Correção

NULL Pointer Dereference

Enumeração de Fraquezas

CWE-476

Identificadores relacionados

CVE-2021-32843

Produtos afetados

Hyperkit

Referências · 7

• https://github.com/moby/hyperkit/commit/df0e46c7dbfd81a957d85e449ba41b52f6f7beb4 · Correção
• https://github.com/moby/hyperkit/pull/313 · Correção
• https://securitylab.github.com/advisories/GHSL-2021-054_057-moby-hyperkit · Nota
• https://t.me/cibsecurity/58499 · Publicação no Telegram
• https://t.me/cvenotify/44624 · Publicação no Telegram
• https://nvd.nist.gov/vuln/detail/CVE-2021-32843 · Nota de Segurança
• https://osv.dev/vulnerability/CVE-2021-32843 · Aviso do Fabricante