cnvd - cnvd-2021-44273

cnvd-2021-44273

Vulnerability from cnvd

Title: Contiki-NG越界读取漏洞

Description:

Contiki-NG是面向下一代物联网设备的开源跨平台操作系统。

Contiki-NG 4.6及更早版本中的6LoWPAN实现存在越界读取漏洞。该漏洞源于IPv6 header解压缩函数从数据包缓冲区读取时不执行适当的边界检查。目前没有详细的漏洞细节提供。

Severity: 高

Patch Name: Contiki-NG越界读取漏洞的补丁

Patch Description:

Contiki-NG是面向下一代物联网设备的开源跨平台操作系统。

Contiki-NG 4.6及更早版本中的6LoWPAN实现存在越界读取漏洞。该漏洞源于IPv6 header解压缩函数从数据包缓冲区读取时不执行适当的边界检查。目前没有详细的漏洞细节提供。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://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-hhwj-2p59-v8p9

Reference: https://nvd.nist.gov/vuln/detail/CVE-2021-21410

Impacted products

Name
Contiki-NG Contiki-NG <4.6

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-21410"
    }
  },
  "description": "Contiki-NG\u662f\u9762\u5411\u4e0b\u4e00\u4ee3\u7269\u8054\u7f51\u8bbe\u5907\u7684\u5f00\u6e90\u8de8\u5e73\u53f0\u64cd\u4f5c\u7cfb\u7edf\u3002\n\nContiki-NG 4.6\u53ca\u66f4\u65e9\u7248\u672c\u4e2d\u76846LoWPAN\u5b9e\u73b0\u5b58\u5728\u8d8a\u754c\u8bfb\u53d6\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8eIPv6 header\u89e3\u538b\u7f29\u51fd\u6570\u4ece\u6570\u636e\u5305\u7f13\u51b2\u533a\u8bfb\u53d6\u65f6\u4e0d\u6267\u884c\u9002\u5f53\u7684\u8fb9\u754c\u68c0\u67e5\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\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://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-hhwj-2p59-v8p9",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-44273",
  "openTime": "2021-06-23",
  "patchDescription": "Contiki-NG\u662f\u9762\u5411\u4e0b\u4e00\u4ee3\u7269\u8054\u7f51\u8bbe\u5907\u7684\u5f00\u6e90\u8de8\u5e73\u53f0\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nContiki-NG 4.6\u53ca\u66f4\u65e9\u7248\u672c\u4e2d\u76846LoWPAN\u5b9e\u73b0\u5b58\u5728\u8d8a\u754c\u8bfb\u53d6\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8eIPv6 header\u89e3\u538b\u7f29\u51fd\u6570\u4ece\u6570\u636e\u5305\u7f13\u51b2\u533a\u8bfb\u53d6\u65f6\u4e0d\u6267\u884c\u9002\u5f53\u7684\u8fb9\u754c\u68c0\u67e5\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\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": "Contiki-NG\u8d8a\u754c\u8bfb\u53d6\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Contiki-NG Contiki-NG \u003c4.6"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-21410",
  "serverity": "\u9ad8",
  "submitTime": "2021-06-22",
  "title": "Contiki-NG\u8d8a\u754c\u8bfb\u53d6\u6f0f\u6d1e"
}

CVE-2021-21410 (GCVE-0-2021-21410)

Vulnerability from cvelistv5

Published

2021-06-18 21:00

Modified

2024-08-03 18:09

Severity ?

8.2 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L

CWE

CWE-125 - Out-of-bounds Read

Summary

Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. An out-of-bounds read can be triggered by 6LoWPAN packets sent to devices running Contiki-NG 4.6 and prior. The IPv6 header decompression function (<code>uncompress_hdr_iphc</code>) does not perform proper boundary checks when reading from the packet buffer. Hence, it is possible to construct a compressed 6LoWPAN packet that will read more bytes than what is available from the packet buffer. As of time of publication, there is not a release with a patch available. Users can apply the patch for this vulnerability out-of-band as a workaround.

References

▼	URL	Tags
	https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-hhwj-2p59-v8p9	x_refsource_CONFIRM
	https://github.com/contiki-ng/contiki-ng/pull/1482	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	contiki-ng	contiki-ng	Version: <= 4.6

Show details on NVD website

JSON

To clipboard

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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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