Vulnerability-Lookup

CNVD-2022-07634

Vulnerability from cnvd - Published: 2022-01-30

Title

Linux kernel缓冲区溢出漏洞（CNVD-2022-07634）

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 存在缓冲区错误漏洞，该漏洞源于 net/packet/af_packet.c中的 packet_set_ring()函数存在双重释放错误，本地攻击者可利用此漏洞通过精心设计的系统调用利用来提升权限或拒绝服务。

Severity

中

Patch Name

Linux kernel缓冲区溢出漏洞（CNVD-2022-07634）的补丁

Patch Description

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=ec6af094ea28f0f2dda1a6a33b14cd57e36a9755

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-22600

Impacted products

Name
Linux Linux kernel null

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-22600",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-22600"
    }
  },
  "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\u7f13\u51b2\u533a\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e net/packet/af_packet.c\u4e2d\u7684 packet_set_ring()\u51fd\u6570\u5b58\u5728\u53cc\u91cd\u91ca\u653e\u9519\u8bef\uff0c\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u6b64\u6f0f\u6d1e\u901a\u8fc7\u7cbe\u5fc3\u8bbe\u8ba1\u7684\u7cfb\u7edf\u8c03\u7528\u5229\u7528\u6765\u63d0\u5347\u6743\u9650\u6216\u62d2\u7edd\u670d\u52a1\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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=ec6af094ea28f0f2dda1a6a33b14cd57e36a9755",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-07634",
  "openTime": "2022-01-30",
  "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\u7f13\u51b2\u533a\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e net/packet/af_packet.c\u4e2d\u7684 packet_set_ring()\u51fd\u6570\u5b58\u5728\u53cc\u91cd\u91ca\u653e\u9519\u8bef\uff0c\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u6b64\u6f0f\u6d1e\u901a\u8fc7\u7cbe\u5fc3\u8bbe\u8ba1\u7684\u7cfb\u7edf\u8c03\u7528\u5229\u7528\u6765\u63d0\u5347\u6743\u9650\u6216\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": "Linux kernel\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2022-07634\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Linux Linux kernel null"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-22600",
  "serverity": "\u4e2d",
  "submitTime": "2022-01-28",
  "title": "Linux kernel\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2022-07634\uff09"
}

CVE-2021-22600 (GCVE-0-2021-22600)

Vulnerability from cvelistv5 – Published: 2022-01-26 00:00 – Updated: 2025-10-21 23:15

Title

Double Free in net/packet/af_packet.c leading to priviledge escalation

Summary

A double free bug in packet_set_ring() in net/packet/af_packet.c can be exploited by a local user through crafted syscalls to escalate privileges or deny service. We recommend upgrading kernel past the effected versions or rebuilding past ec6af094ea28f0f2dda1a6a33b14cd57e36a9755

Severity

6.6 (Medium)


                        
                          CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:H

SSVC

Exploitation: active Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-01-29 20:47 UTC

CWE

CWE-415 - Double Free

Assigner

Google Google root

References

5 references

URL	Tags
https://git.kernel.org/pub/scm/linux/kernel/git/t…
https://lists.debian.org/debian-lts-announce/2022…	mailing-list
https://www.debian.org/security/2022/dsa-5096	vendor-advisory
https://security.netapp.com/advisory/ntap-2023011…
https://www.cisa.gov/known-exploited-vulnerabilit…	government-resource

Impacted products

1 product

Vendor	Product	Version
Linux Kernel	Kernel	Affected: unspecified , < 5.4.168 (custom) Affected: unspecified , < 5.10.88 (custom) Affected: unspecified , < 5.15.11 (custom) Affected: unspecified , < 5.16-rc6 (custom)

Show details on NVD website

JSON

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{
  "containers": {
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      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T18:44:13.906Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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          },
          {
            "name": "[debian-lts-announce] 20220309 [SECURITY] [DLA 2941-1] linux-4.19 security update",
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            "url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html"
          },
          {
            "name": "DSA-5096",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2022/dsa-5096"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20230110-0002/"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-22600",
                "options": [
                  {
                    "Exploitation": "active"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-01-29T20:47:54.395065Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          },
          {
            "other": {
              "content": {
                "dateAdded": "2022-04-11",
                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-22600"
              },
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        "providerMetadata": {
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        "timeline": [
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    ],
    "cna": {
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          "product": "Kernel",
          "vendor": "Linux Kernel",
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            "privilegesRequired": "LOW",
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            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:H",
            "version": "3.1"
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    "dateReserved": "2021-01-05T00:00:00.000Z",
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    "state": "PUBLISHED"
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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CNVD-2022-07634

CVE-2021-22600 (GCVE-0-2021-22600)

Tags

Sightings

Nomenclature

Related by attack behaviour