cnvd - cnvd-2021-60529

cnvd-2021-60529

Vulnerability from cnvd

Title: Linux Kernel权限提升漏洞（CNVD-2021-60529）

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存在权限提升漏洞，攻击者可以利用此漏洞以root身份获得提升的权限。

Severity: 中

Patch Name: Linux Kernel权限提升漏洞（CNVD-2021-60529）的补丁

Patch 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存在权限提升漏洞，攻击者可以利用此漏洞以root身份获得提升的权限。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description:

厂商已发布了漏洞修复程序，请及时关注更新： https://lore.kernel.org/netdev/20210619161813.2098382-1-cascardo@canonical.com/

Reference: https://access.redhat.com/security/cve/cve-2021-3609

Impacted products

Name
Linux Linux kernel

Show details on source website

JSON

To clipboard

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    "cve": {
      "cveNumber": "CVE-2021-3609"
    }
  },
  "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\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u4ee5\u5229\u7528\u6b64\u6f0f\u6d1e\u4ee5root\u8eab\u4efd\u83b7\u5f97\u63d0\u5347\u7684\u6743\u9650\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://lore.kernel.org/netdev/20210619161813.2098382-1-cascardo@canonical.com/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-60529",
  "openTime": "2021-08-10",
  "patchDescription": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux Kernel\u5b58\u5728\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u4ee5\u5229\u7528\u6b64\u6f0f\u6d1e\u4ee5root\u8eab\u4efd\u83b7\u5f97\u63d0\u5347\u7684\u6743\u9650\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Linux Kernel\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff08CNVD-2021-60529\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Linux Linux kernel"
  },
  "referenceLink": "https://access.redhat.com/security/cve/cve-2021-3609",
  "serverity": "\u4e2d",
  "submitTime": "2021-06-22",
  "title": "Linux Kernel\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff08CNVD-2021-60529\uff09"
}

CVE-2021-3609 (GCVE-0-2021-3609)

Vulnerability from cvelistv5

Published

2022-03-03 18:24

Modified

2024-08-03 17:01

Severity ?

CWE

CWE-362 - - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Summary

.A flaw was found in the CAN BCM networking protocol in the Linux kernel, where a local attacker can abuse a flaw in the CAN subsystem to corrupt memory, crash the system or escalate privileges. This race condition in net/can/bcm.c in the Linux kernel allows for local privilege escalation to root.

References

▼	URL	Tags
	https://bugzilla.redhat.com/show_bug.cgi?id=1971651	x_refsource_MISC
	https://www.openwall.com/lists/oss-security/2021/06/19/1	x_refsource_MISC
	https://github.com/nrb547/kernel-exploitation/blob/main/cve-2021-3609/cve-2021-3609.md	x_refsource_MISC
	https://github.com/torvalds/linux/commit/d5f9023fa61ee8b94f37a93f08e94b136cf1e463	x_refsource_MISC
	https://security.netapp.com/advisory/ntap-20220419-0004/	x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	n/a	kernel	Version: Affects kernel v2.6.25 to v5.13-rc6

Show details on NVD website

JSON

To clipboard

{
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    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:01:07.458Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
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        "references": [
          {
            "tags": [
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            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1971651"
          },
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            "tags": [
              "x_refsource_MISC",
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            "url": "https://www.openwall.com/lists/oss-security/2021/06/19/1"
          },
          {
            "tags": [
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            ],
            "url": "https://github.com/nrb547/kernel-exploitation/blob/main/cve-2021-3609/cve-2021-3609.md"
          },
          {
            "tags": [
              "x_refsource_MISC",
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            "url": "https://github.com/torvalds/linux/commit/d5f9023fa61ee8b94f37a93f08e94b136cf1e463"
          },
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            "url": "https://security.netapp.com/advisory/ntap-20220419-0004/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "kernel",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Affects kernel v2.6.25 to v5.13-rc6"
            }
          ]
        }
      ],
      "descriptions": [
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          "lang": "en",
          "value": ".A flaw was found in the CAN BCM networking protocol in the Linux kernel, where a local attacker can abuse a flaw in the CAN subsystem to corrupt memory, crash the system or escalate privileges. This race condition in net/can/bcm.c in the Linux kernel allows for local privilege escalation to root."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
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              "description": "CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization (\u0027Race Condition\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
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        "dateUpdated": "2022-04-19T18:06:33",
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        "shortName": "redhat"
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          "tags": [
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          "url": "https://github.com/torvalds/linux/commit/d5f9023fa61ee8b94f37a93f08e94b136cf1e463"
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    "datePublished": "2022-03-03T18:24:59",
    "dateReserved": "2021-06-18T00:00:00",
    "dateUpdated": "2024-08-03T17:01:07.458Z",
    "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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