github - ghsa-v4c8-84p4-cxv7

ghsa-v4c8-84p4-cxv7

Vulnerability from github

Published

2022-05-24 22:28

Modified

2022-07-26 00:00

Severity ?

3.3 (Low) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Details

An information disclosure vulnerability exists in the ARM SIGPAGE functionality of Linux Kernel v5.4.66 and v5.4.54. The latest version (5.11-rc4) seems to still be vulnerable. A userland application can read the contents of the sigpage, which can leak kernel memory contents. An attacker can read a process’s memory at a specific offset to trigger this vulnerability. This was fixed in kernel releases: 4.14.222 4.19.177 5.4.99 5.10.17 5.11

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{
  "affected": [],
  "aliases": [
    "CVE-2021-21781"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-908"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-08-18T15:15:00Z",
    "severity": "LOW"
  },
  "details": "An information disclosure vulnerability exists in the ARM SIGPAGE functionality of Linux Kernel v5.4.66 and v5.4.54. The latest version (5.11-rc4) seems to still be vulnerable. A userland application can read the contents of the sigpage, which can leak kernel memory contents. An attacker can read a process\u2019s memory at a specific offset to trigger this vulnerability. This was fixed in kernel releases: 4.14.222 4.19.177 5.4.99 5.10.17 5.11",
  "id": "GHSA-v4c8-84p4-cxv7",
  "modified": "2022-07-26T00:00:53Z",
  "published": "2022-05-24T22:28:58Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21781"
    },
    {
      "type": "WEB",
      "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2021-1243"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpujul2022.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

cve-2021-21781

Vulnerability from cvelistv5

Published

2021-08-18 14:37

Modified

2024-08-03 18:23

Severity ?

4.0 (Medium) - CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Summary

References

▼	URL	Tags
	https://talosintelligence.com/vulnerability_reports/TALOS-2021-1243	x_refsource_MISC
	https://www.oracle.com/security-alerts/cpujul2022.html	x_refsource_MISC

Impacted products

▼	Vendor	Product
	n/a	Linux Kernel

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T18:23:29.351Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2021-1243"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.oracle.com/security-alerts/cpujul2022.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Linux Kernel",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Linux Kernel v5.4.54, Linux Kernel v5.4.66"
            }
          ]
        }
      ],
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          "value": "An information disclosure vulnerability exists in the ARM SIGPAGE functionality of Linux Kernel v5.4.66 and v5.4.54. The latest version (5.11-rc4) seems to still be vulnerable. A userland application can read the contents of the sigpage, which can leak kernel memory contents. An attacker can read a process\u2019s memory at a specific offset to trigger this vulnerability. This was fixed in kernel releases: 4.14.222 4.19.177 5.4.99 5.10.17 5.11"
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
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          }
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      "providerMetadata": {
        "dateUpdated": "2022-07-25T16:24:43",
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          ],
          "url": "https://www.oracle.com/security-alerts/cpujul2022.html"
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      ],
      "x_legacyV4Record": {
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          "ID": "CVE-2021-21781",
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        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Linux Kernel",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "Linux Kernel v5.4.54, Linux Kernel v5.4.66"
                          }
                        ]
                      }
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                },
                "vendor_name": "n/a"
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        "data_format": "MITRE",
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        "impact": {
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            },
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  },
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    "assignerOrgId": "b86d76f8-0f8a-4a96-a78d-d8abfc7fc29b",
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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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