github - ghsa-wc3f-5p43-3cxx

ghsa-wc3f-5p43-3cxx

Vulnerability from github

Published

2022-03-11 00:02

Modified

2022-10-01 00:00

Severity ?

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

Details

A security issue was found in Linux kernel’s OverlayFS subsystem where a local attacker who has the ability to mount the TmpFS filesystem with OverlayFS can abuse a logic bug in the overlayfs code which can inadvertently reveal files hidden in the original mount.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-3732"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-03-10T17:42:00Z",
    "severity": "MODERATE"
  },
  "details": "A security issue was found in Linux kernel\u2019s OverlayFS subsystem where a local attacker who has the ability to mount the TmpFS filesystem with OverlayFS can abuse a logic bug in the overlayfs code which can inadvertently reveal files hidden in the original mount.",
  "id": "GHSA-wc3f-5p43-3cxx",
  "modified": "2022-10-01T00:00:20Z",
  "published": "2022-03-11T00:02:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3732"
    },
    {
      "type": "WEB",
      "url": "https://github.com/torvalds/linux/commit/427215d85e8d1476da1a86b8d67aceb485eb3631"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1995249"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=427215d85e8d1476da1a86b8d67aceb485eb3631"
    },
    {
      "type": "WEB",
      "url": "https://ubuntu.com/security/CVE-2021-3732"
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  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

cve-2021-3732

Vulnerability from cvelistv5

Published

2022-03-07 13:56

Modified

2024-08-03 17:01

Severity ?

Summary

A flaw was found in the Linux kernel's OverlayFS subsystem in the way the user mounts the TmpFS filesystem with OverlayFS. This flaw allows a local user to gain access to hidden files that should not be accessible.

References

▼	URL	Tags
	https://bugzilla.redhat.com/show_bug.cgi?id=1995249	x_refsource_MISC
	https://ubuntu.com/security/CVE-2021-3732	x_refsource_MISC
	https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=427215d85e8d1476da1a86b8d67aceb485eb3631	x_refsource_MISC
	https://github.com/torvalds/linux/commit/427215d85e8d1476da1a86b8d67aceb485eb3631	x_refsource_MISC

Impacted products

▼	Vendor	Product
	n/a	kernel

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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.

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