github - ghsa-xjx8-665x-j9wh

GHSA-XJX8-665X-J9WH

Vulnerability from github – Published: 2022-07-22 00:00 – Updated: 2022-07-28 00:00

Details

A race condition in the Linux kernel before 5.6.2 between the VT_DISALLOCATE ioctl and closing/opening of ttys could lead to a use-after-free.

Severity ?

5.1 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2020-36557"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-07-21T04:15:00Z",
    "severity": "MODERATE"
  },
  "details": "A race condition in the Linux kernel before 5.6.2 between the VT_DISALLOCATE ioctl and closing/opening of ttys could lead to a use-after-free.",
  "id": "GHSA-xjx8-665x-j9wh",
  "modified": "2022-07-28T00:00:41Z",
  "published": "2022-07-22T00:00:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-36557"
    },
    {
      "type": "WEB",
      "url": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ca4463bf8438b403596edd0ec961ca0d4fbe0220"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2020-36557 (GCVE-0-2020-36557)

Vulnerability from cvelistv5 – Published: 2022-07-21 03:46 – Updated: 2024-08-04 17:30

Summary

A race condition in the Linux kernel before 5.6.2 between the VT_DISALLOCATE ioctl and closing/opening of ttys could lead to a use-after-free.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://git.kernel.org/pub/scm/linux/kernel/git/t…	x_refsource_MISC
	https://cdn.kernel.org/pub/linux/kernel/v5.x/Chan…	x_refsource_MISC

Show details on NVD website

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          },
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            ],
            "url": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.2"
          }
        ],
        "title": "CVE Program Container"
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    "cna": {
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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-XJX8-665X-J9WH

CVE-2020-36557 (GCVE-0-2020-36557)

Tags

Sightings

Nomenclature