cvelistv5 - cve-2021-20181

cve-2021-20181

Vulnerability from cvelistv5

Published

2021-05-13 15:24

Modified

2024-08-03 17:30

Severity ?

Summary

A race condition flaw was found in the 9pfs server implementation of QEMU up to and including 5.2.0. This flaw allows a malicious 9p client to cause a use-after-free error, potentially escalating their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity as well as system availability.

References

URL	Tags
secalert@redhat.com	https://bugzilla.redhat.com/show_bug.cgi?id=1927007	Issue Tracking, Patch, Third Party Advisory
secalert@redhat.com	https://lists.debian.org/debian-lts-announce/2021/02/msg00024.html	Mailing List, Third Party Advisory
secalert@redhat.com	https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html	Mailing List, Third Party Advisory
secalert@redhat.com	https://security.netapp.com/advisory/ntap-20210720-0009/	Third Party Advisory
secalert@redhat.com	https://www.zerodayinitiative.com/advisories/ZDI-21-159/	Third Party Advisory, VDB Entry

Impacted products

▼	Vendor	Product
	n/a	qemu

Show details on NVD website

JSON

To clipboard

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  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:30:07.767Z",
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        "references": [
          {
            "tags": [
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              "x_transferred"
            ],
            "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-159/"
          },
          {
            "name": "[debian-lts-announce] 20210218 [SECURITY] [DLA 2560-1] qemu security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
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          },
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            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
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          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20210720-0009/"
          },
          {
            "name": "[debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "qemu",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "up to, including 5.2.0"
            }
          ]
        }
      ],
      "descriptions": [
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          "lang": "en",
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        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-367",
              "description": "CWE-367-\u003eCWE-416",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-09-05T05:06:09",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-159/"
        },
        {
          "name": "[debian-lts-announce] 20210218 [SECURITY] [DLA 2560-1] qemu security update",
          "tags": [
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            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2021/02/msg00024.html"
        },
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          "tags": [
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          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1927007"
        },
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          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://security.netapp.com/advisory/ntap-20210720-0009/"
        },
        {
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          "tags": [
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          "url": "https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html"
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      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2021-20181",
    "datePublished": "2021-05-13T15:24:15",
    "dateReserved": "2020-12-17T00:00:00",
    "dateUpdated": "2024-08-03T17:30:07.767Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
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  }
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted

cve-2021-20181

Vulnerability from cvelistv5

ghsa-mq7v-47j3-rc24

Vulnerability from github

gsd-2021-20181

Vulnerability from gsd

Tags

Sightings

Nomenclature