Vulnerability-Lookup

GHSA-MM23-FXMX-2R5J

Vulnerability from github – Published: 2022-05-13 01:23 – Updated: 2025-04-12 12:36

Details

The do_remount function in fs/namespace.c in the Linux kernel through 3.16.1 does not maintain the MNT_LOCK_READONLY bit across a remount of a bind mount, which allows local users to bypass an intended read-only restriction and defeat certain sandbox protection mechanisms via a "mount -o remount" command within a user namespace.

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{
  "affected": [],
  "aliases": [
    "CVE-2014-5206"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-269"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2014-08-18T11:15:00Z",
    "severity": "HIGH"
  },
  "details": "The do_remount function in fs/namespace.c in the Linux kernel through 3.16.1 does not maintain the MNT_LOCK_READONLY bit across a remount of a bind mount, which allows local users to bypass an intended read-only restriction and defeat certain sandbox protection mechanisms via a \"mount -o remount\" command within a user namespace.",
  "id": "GHSA-mm23-fxmx-2r5j",
  "modified": "2025-04-12T12:36:40Z",
  "published": "2022-05-13T01:23:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2014-5206"
    },
    {
      "type": "WEB",
      "url": "https://github.com/torvalds/linux/commit/a6138db815df5ee542d848318e5dae681590fccd"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1129662"
    },
    {
      "type": "WEB",
      "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a6138db815df5ee542d848318e5dae681590fccd"
    },
    {
      "type": "WEB",
      "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=a6138db815df5ee542d848318e5dae681590fccd"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2014/08/13/4"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/69214"
    },
    {
      "type": "WEB",
      "url": "http://www.ubuntu.com/usn/USN-2317-1"
    },
    {
      "type": "WEB",
      "url": "http://www.ubuntu.com/usn/USN-2318-1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2014-5206 (GCVE-0-2014-5206)

Vulnerability from cvelistv5 – Published: 2014-08-18 10:00 – Updated: 2024-08-06 11:41

Summary

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	http://git.kernel.org/?p=linux/kernel/git/torvald…	x_refsource_CONFIRM
	http://www.ubuntu.com/usn/USN-2318-1	vendor-advisoryx_refsource_UBUNTU
	http://www.securityfocus.com/bid/69214	vdb-entryx_refsource_BID
	https://bugzilla.redhat.com/show_bug.cgi?id=1129662	x_refsource_CONFIRM
	https://github.com/torvalds/linux/commit/a6138db8…	x_refsource_CONFIRM
	http://www.openwall.com/lists/oss-security/2014/08/13/4	mailing-listx_refsource_MLIST
	http://www.ubuntu.com/usn/USN-2317-1	vendor-advisoryx_refsource_UBUNTU

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-MM23-FXMX-2R5J

CVE-2014-5206 (GCVE-0-2014-5206)

Tags

Sightings

Nomenclature