cnvd - cnvd-2022-68595

cnvd-2022-68595

Vulnerability from cnvd

Title: Linux kernel信息泄露漏洞（CNVD-2022-68595）

Description:

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。

Linux kernel存在安全漏洞，攻击者可利用该漏洞获取内部内核内存信息。

Severity: 中

Formal description:

目前没有详细的解决方案提供： https://access.redhat.com/security/cve/cve-2021-4159

Reference: https://nvd.nist.gov/vuln/detail/CVE-2021-4159

Impacted products

Name
Linux Linux kernel <5.7

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-4159",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-4159"
    }
  },
  "description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\n\nLinux kernel\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u53d6\u5185\u90e8\u5185\u6838\u5185\u5b58\u4fe1\u606f\u3002",
  "formalWay": "\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u89e3\u51b3\u65b9\u6848\u63d0\u4f9b\uff1a\r\nhttps://access.redhat.com/security/cve/cve-2021-4159",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-68595",
  "openTime": "2022-10-13",
  "products": {
    "product": "Linux Linux kernel \u003c5.7"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-4159",
  "serverity": "\u4e2d",
  "submitTime": "2022-02-09",
  "title": "Linux kernel\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\uff08CNVD-2022-68595\uff09"
}

CVE-2021-4159 (GCVE-0-2021-4159)

Vulnerability from cvelistv5

Published

2022-08-24 15:10

Modified

2024-08-03 17:16

Severity ?

CWE

CWE-202 - - Exposure of Sensitive Information Through Data Queries

Summary

A vulnerability was found in the Linux kernel's EBPF verifier when handling internal data structures. Internal memory locations could be returned to userspace. A local attacker with the permissions to insert eBPF code to the kernel can use this to leak internal kernel memory details defeating some of the exploit mitigations in place for the kernel.

References

▼	URL	Tags
	https://bugzilla.redhat.com/show_bug.cgi?id=2036024	x_refsource_MISC
	https://access.redhat.com/security/cve/CVE-2021-4159	x_refsource_MISC
	https://security-tracker.debian.org/tracker/CVE-2021-4159	x_refsource_MISC
	https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=294f2fc6da27620a506e6c050241655459ccd6bd	x_refsource_MISC
	https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html	mailing-list, x_refsource_MLIST

Impacted products

	Vendor	Product	Version
	n/a	kernel	Version: Fixed in v5.7-rc1

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:16:04.247Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
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          {
            "tags": [
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              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2036024"
          },
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            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/security/cve/CVE-2021-4159"
          },
          {
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              "x_refsource_MISC",
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            ],
            "url": "https://security-tracker.debian.org/tracker/CVE-2021-4159"
          },
          {
            "tags": [
              "x_refsource_MISC",
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            "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=294f2fc6da27620a506e6c050241655459ccd6bd"
          },
          {
            "name": "[debian-lts-announce] 20221002 [SECURITY] [DLA 3131-1] linux security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "kernel",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Fixed in v5.7-rc1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability was found in the Linux kernel\u0027s EBPF verifier when handling internal data structures. Internal memory locations could be returned to userspace. A local attacker with the permissions to insert eBPF code to the kernel can use this to leak internal kernel memory details defeating some of the exploit mitigations in place for the kernel."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-202",
              "description": "CWE-202 - Exposure of Sensitive Information Through Data Queries",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-10-02T18:06:18",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
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          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2036024"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://access.redhat.com/security/cve/CVE-2021-4159"
        },
        {
          "tags": [
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          ],
          "url": "https://security-tracker.debian.org/tracker/CVE-2021-4159"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=294f2fc6da27620a506e6c050241655459ccd6bd"
        },
        {
          "name": "[debian-lts-announce] 20221002 [SECURITY] [DLA 3131-1] linux security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2021-4159",
    "datePublished": "2022-08-24T15:10:57",
    "dateReserved": "2021-12-23T00:00:00",
    "dateUpdated": "2024-08-03T17:16:04.247Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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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