cnvd - cnvd-2021-43366

cnvd-2021-43366

Vulnerability from cnvd

Title: Linux kernel llcp_sock_bind()拒绝服务漏洞

Description:

Linux kernel是一套开源操作系统。

Linux kernel llcp_sock_bind()存在安全漏洞，远程攻击者可利用该漏洞提交特殊的请求，可使系统崩溃。

Severity: 高

Patch Name: Linux kernel llcp_sock_bind()拒绝服务漏洞的补丁

Patch Description:

Linux kernel是一套开源操作系统。

Linux kernel llcp_sock_bind()存在安全漏洞，远程攻击者可利用该漏洞提交特殊的请求，可使系统崩溃。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://wordpress.org/news/2020/10/wordpress-5-5-2-security-and-maintenance-release/

Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-25670

Impacted products

Name
Linux Linux kernel

Show details on source website

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-25670",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-25670"
    }
  },
  "description": "Linux kernel\u662f\u4e00\u5957\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edf\u3002\n\nLinux kernel llcp_sock_bind()\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u63d0\u4ea4\u7279\u6b8a\u7684\u8bf7\u6c42\uff0c\u53ef\u4f7f\u7cfb\u7edf\u5d29\u6e83\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://wordpress.org/news/2020/10/wordpress-5-5-2-security-and-maintenance-release/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-43366",
  "openTime": "2021-06-19",
  "patchDescription": "Linux kernel\u662f\u4e00\u5957\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nLinux kernel llcp_sock_bind()\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u63d0\u4ea4\u7279\u6b8a\u7684\u8bf7\u6c42\uff0c\u53ef\u4f7f\u7cfb\u7edf\u5d29\u6e83\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 llcp_sock_bind()\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Linux Linux kernel"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-25670",
  "serverity": "\u9ad8",
  "submitTime": "2020-11-09",
  "title": "Linux kernel llcp_sock_bind()\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2020-25670 (GCVE-0-2020-25670)

Vulnerability from cvelistv5

Published

2021-05-26 10:28

Modified

2024-08-04 15:40

Severity ?

CWE

CWE-416

Summary

A vulnerability was found in Linux Kernel where refcount leak in llcp_sock_bind() causing use-after-free which might lead to privilege escalations.

References

▼	URL	Tags
	http://www.openwall.com/lists/oss-security/2020/11/01/1	mailing-list, x_refsource_MLIST
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UTVACC6PGS6OSD3EYY7FZUAZT2EUMFH5/	vendor-advisory, x_refsource_FEDORA
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PW3OASG7OEMHANDWBM5US5WKTOC76KMH/	vendor-advisory, x_refsource_FEDORA
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VEIEGQXUW37YHZ5MTAZTDCIMHUN26NJS/	vendor-advisory, x_refsource_FEDORA
	http://www.openwall.com/lists/oss-security/2021/05/11/4	mailing-list, x_refsource_MLIST
	https://www.openwall.com/lists/oss-security/2020/11/01/1	x_refsource_MISC
	https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html	mailing-list, x_refsource_MLIST
	https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html	mailing-list, x_refsource_MLIST
	https://security.netapp.com/advisory/ntap-20210702-0008/	x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	n/a	Linux Kernel	Version: All

Show details on NVD website

JSON

To clipboard

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          "url": "https://www.openwall.com/lists/oss-security/2020/11/01/1"
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          "name": "[debian-lts-announce] 20210623 [SECURITY] [DLA 2689-1] linux security update",
          "tags": [
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          "url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html"
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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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