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cvelistGitHub_MCVELIST:CVE-2021-32847
HistoryFeb 20, 2023 - 12:00 a.m.

CVE-2021-32847 Moby HyperKit uninitialized memory use in virtio-sock pci_vtsock_proc_tx

2023-02-2000:00:00
CWE-125
GitHub_M
www.cve.org
hyperkit vulnerability
uninitialized memory use
virtio-sock
disclosure of host memory

7.1 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

6.8 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

15.5%

HyperKit is a toolkit for embedding hypervisor capabilities in an application. In versions 0.20210107 and prior, a malicious guest can trigger a vulnerability in the host by abusing the disk driver that may lead to the disclosure of the host memory into the virtualized guest. This issue is fixed in commit cf60095a4d8c3cb2e182a14415467afd356e982f.

CNA Affected

[
  {
    "vendor": "moby",
    "product": "hyperkit",
    "versions": [
      {
        "version": "0.20210107",
        "status": "affected",
        "lessThanOrEqual": "0.20210107",
        "versionType": "custom"
      }
    ]
  }
]

7.1 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

6.8 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

15.5%

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