cnvd - cnvd-2021-34679

cnvd-2021-34679

Vulnerability from cnvd

Title: NetBSD输入验证错误漏洞

Description:

NetBSD是NetBSD（Netbsd）基金会的一套开源的类Unix操作系统。

NetBSD 7.1版本存在安全漏洞。攻击者可利用该漏洞导致程序拒绝服务。

Severity: 低

Patch Name: NetBSD输入验证错误漏洞的补丁

Patch Description:

NetBSD是NetBSD（Netbsd）基金会的一套开源的类Unix操作系统。

NetBSD 7.1版本存在安全漏洞。攻击者可利用该漏洞导致程序拒绝服务。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:

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://www.wi-fi.org/security-update-fragmentation

Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-26139

Impacted products

Name
NetBSD Netbsd 7.1

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-26139"
    }
  },
  "description": "NetBSD\u662fNetBSD\uff08Netbsd\uff09\u57fa\u91d1\u4f1a\u7684\u4e00\u5957\u5f00\u6e90\u7684\u7c7bUnix\u64cd\u4f5c\u7cfb\u7edf\u3002\n\nNetBSD 7.1\u7248\u672c\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u7a0b\u5e8f\u62d2\u7edd\u670d\u52a1\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://www.wi-fi.org/security-update-fragmentation",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-34679",
  "openTime": "2021-05-14",
  "patchDescription": "NetBSD\u662fNetBSD\uff08Netbsd\uff09\u57fa\u91d1\u4f1a\u7684\u4e00\u5957\u5f00\u6e90\u7684\u7c7bUnix\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nNetBSD 7.1\u7248\u672c\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u7a0b\u5e8f\u62d2\u7edd\u670d\u52a1\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": "NetBSD\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e \u7684\u8865\u4e01",
  "products": {
    "product": "NetBSD Netbsd 7.1"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-26139",
  "serverity": "\u4f4e",
  "submitTime": "2021-05-14",
  "title": "NetBSD\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e"
}

CVE-2020-26139 (GCVE-0-2020-26139)

Vulnerability from cvelistv5

Published

2021-05-11 19:37

Modified

2024-08-04 15:49

Severity ?

CWE

Summary

An issue was discovered in the kernel in NetBSD 7.1. An Access Point (AP) forwards EAPOL frames to other clients even though the sender has not yet successfully authenticated to the AP. This might be abused in projected Wi-Fi networks to launch denial-of-service attacks against connected clients and makes it easier to exploit other vulnerabilities in connected clients.

References

▼	URL	Tags
	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu	vendor-advisory, x_refsource_CISCO
	https://www.fragattacks.com	x_refsource_MISC
	https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md	x_refsource_MISC
	http://www.openwall.com/lists/oss-security/2021/05/11/12	mailing-list, x_refsource_MLIST
	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://cert-portal.siemens.com/productcert/pdf/ssa-913875.pdf	x_refsource_CONFIRM
	https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T15:49:07.127Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
          {
            "name": "20210511 Multiple Vulnerabilities in Frame Aggregation and Fragmentation Implementations of 802.11 Specification Affecting Cisco Products: May 2021",
            "tags": [
              "vendor-advisory",
              "x_refsource_CISCO",
              "x_transferred"
            ],
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.fragattacks.com"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md"
          },
          {
            "name": "[oss-security] 20210511 various 802.11 security issues - fragattacks.com",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2021/05/11/12"
          },
          {
            "name": "[debian-lts-announce] 20210623 [SECURITY] [DLA 2689-1] linux security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html"
          },
          {
            "name": "[debian-lts-announce] 20210623 [SECURITY] [DLA 2690-1] linux-4.19 security update",
            "tags": [
              "mailing-list",
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              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html"
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            "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63"
          }
        ],
        "title": "CVE Program Container"
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    ],
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      "providerMetadata": {
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          "tags": [
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          "url": "http://www.openwall.com/lists/oss-security/2021/05/11/12"
        },
        {
          "name": "[debian-lts-announce] 20210623 [SECURITY] [DLA 2689-1] linux security update",
          "tags": [
            "mailing-list",
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          ],
          "url": "https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html"
        },
        {
          "name": "[debian-lts-announce] 20210623 [SECURITY] [DLA 2690-1] linux-4.19 security update",
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        },
        {
          "tags": [
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          ],
          "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63"
        }
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    "datePublished": "2021-05-11T19:37:55",
    "dateReserved": "2020-09-29T00:00:00",
    "dateUpdated": "2024-08-04T15:49:07.127Z",
    "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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