github - ghsa-j4w8-rj66-g2q9

ghsa-j4w8-rj66-g2q9

Vulnerability from github

Published

2022-05-24 17:17

Modified

2024-04-04 02:50

Severity ?

4.7 (Medium) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

An issue was discovered in the Linux kernel 4.18 through 5.6.11 when unprivileged user namespaces are allowed. A user can create their own PID namespace, and mount a FUSE filesystem. Upon interaction with this FUSE filesystem, if the userspace component is terminated via a kill of the PID namespace's pid 1, it will result in a hung task, and resources being permanently locked up until system reboot. This can result in resource exhaustion.

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{
  "affected": [],
  "aliases": [
    "CVE-2019-20794"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400",
      "CWE-772"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-05-09T18:15:00Z",
    "severity": "MODERATE"
  },
  "details": "An issue was discovered in the Linux kernel 4.18 through 5.6.11 when unprivileged user namespaces are allowed. A user can create their own PID namespace, and mount a FUSE filesystem. Upon interaction with this FUSE filesystem, if the userspace component is terminated via a kill of the PID namespace\u0027s pid 1, it will result in a hung task, and resources being permanently locked up until system reboot. This can result in resource exhaustion.",
  "id": "GHSA-j4w8-rj66-g2q9",
  "modified": "2024-04-04T02:50:47Z",
  "published": "2022-05-24T17:17:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-20794"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sargun/fuse-example"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20200608-0001"
    },
    {
      "type": "WEB",
      "url": "https://sourceforge.net/p/fuse/mailman/message/36598753"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2020/08/24/1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2019-20794 (GCVE-0-2019-20794)

Vulnerability from cvelistv5

Published

2020-05-09 17:35

Modified

2024-08-05 02:53

Severity ?

CWE

n/a

Summary

An issue was discovered in the Linux kernel 4.18 through 5.6.11 when unprivileged user namespaces are allowed. A user can create their own PID namespace, and mount a FUSE filesystem. Upon interaction with this FUSE filesystem, if the userspace component is terminated via a kill of the PID namespace's pid 1, it will result in a hung task, and resources being permanently locked up until system reboot. This can result in resource exhaustion.

References

URL

Tags

	https://github.com/sargun/fuse-example	x_refsource_MISC
	https://sourceforge.net/p/fuse/mailman/message/36598753/	x_refsource_MISC
	https://security.netapp.com/advisory/ntap-20200608-0001/	x_refsource_CONFIRM
	http://www.openwall.com/lists/oss-security/2020/08/24/1	mailing-list, x_refsource_MLIST

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

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