Vulnerability-Lookup

CNVD-2021-64482

Vulnerability from cnvd - Published: 2021-08-24

Title

util-linux输入验证错误漏洞

Description

util-linux是开源的一个软件包。 util-linux 2.37.1版本存在输入验证错误漏洞，该漏洞源于util-linux存在整数溢出。攻击者可利用该漏洞导致/proc/sysvipc/sem文件中有大量资源的方式使用系统资源，从而导致缓冲区溢出。

Severity

低

Patch Name

util-linux输入验证错误漏洞的补丁

Patch Description

util-linux是开源的一个软件包。 util-linux 2.37.1版本存在输入验证错误漏洞，该漏洞源于util-linux存在整数溢出。攻击者可利用该漏洞导致/proc/sysvipc/sem文件中有大量资源的方式使用系统资源，从而导致缓冲区溢出。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，详情请关注厂商主页： https://www.cybersecurity-help.cz/vdb/SB2021073009

Reference

https://github.com/karelzak/util-linux/commit/1c9143d0c1f979c3daf10e1c37b5b1e916c22a1c

Impacted products

Name
util-linux util-linux 2.37.1

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-37600"
    }
  },
  "description": "util-linux\u662f\u5f00\u6e90\u7684\u4e00\u4e2a\u8f6f\u4ef6\u5305\u3002\n\nutil-linux 2.37.1\u7248\u672c\u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eutil-linux\u5b58\u5728\u6574\u6570\u6ea2\u51fa\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4/proc/sysvipc/sem\u6587\u4ef6\u4e2d\u6709\u5927\u91cf\u8d44\u6e90\u7684\u65b9\u5f0f\u4f7f\u7528\u7cfb\u7edf\u8d44\u6e90\uff0c\u4ece\u800c\u5bfc\u81f4\u7f13\u51b2\u533a\u6ea2\u51fa\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8be6\u60c5\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\uff1a\r\nhttps://www.cybersecurity-help.cz/vdb/SB2021073009",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-64482",
  "openTime": "2021-08-24",
  "patchDescription": "util-linux\u662f\u5f00\u6e90\u7684\u4e00\u4e2a\u8f6f\u4ef6\u5305\u3002\r\n\r\nutil-linux 2.37.1\u7248\u672c\u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eutil-linux\u5b58\u5728\u6574\u6570\u6ea2\u51fa\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4/proc/sysvipc/sem\u6587\u4ef6\u4e2d\u6709\u5927\u91cf\u8d44\u6e90\u7684\u65b9\u5f0f\u4f7f\u7528\u7cfb\u7edf\u8d44\u6e90\uff0c\u4ece\u800c\u5bfc\u81f4\u7f13\u51b2\u533a\u6ea2\u51fa\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": "util-linux\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "util-linux util-linux 2.37.1"
  },
  "referenceLink": "https://github.com/karelzak/util-linux/commit/1c9143d0c1f979c3daf10e1c37b5b1e916c22a1c",
  "serverity": "\u4f4e",
  "submitTime": "2021-08-03",
  "title": "util-linux\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e"
}

CVE-2021-37600 (GCVE-0-2021-37600)

Vulnerability from cvelistv5 – Published: 2021-07-28 00:00 – Updated: 2024-08-04 01:23 Disputed

Summary

An integer overflow in util-linux through 2.37.1 can potentially cause a buffer overflow if an attacker were able to use system resources in a way that leads to a large number in the /proc/sysvipc/sem file. NOTE: this is unexploitable in GNU C Library environments, and possibly in all realistic environments.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

5 references

URL	Tags
https://github.com/karelzak/util-linux/issues/1395
https://github.com/karelzak/util-linux/commit/1c9…
https://security.netapp.com/advisory/ntap-2021090…
https://security.gentoo.org/glsa/202401-08	vendor-advisory
https://lists.debian.org/debian-lts-announce/2024…	mailing-list

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T01:23:01.417Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
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            ],
            "url": "https://github.com/karelzak/util-linux/issues/1395"
          },
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            "tags": [
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            ],
            "url": "https://github.com/karelzak/util-linux/commit/1c9143d0c1f979c3daf10e1c37b5b1e916c22a1c"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20210902-0002/"
          },
          {
            "name": "GLSA-202401-08",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202401-08"
          },
          {
            "name": "[debian-lts-announce] 20240407 [SECURITY] [DLA 3782-1] util-linux security update",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2024/04/msg00005.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An integer overflow in util-linux through 2.37.1 can potentially cause a buffer overflow if an attacker were able to use system resources in a way that leads to a large number in the /proc/sysvipc/sem file. NOTE: this is unexploitable in GNU C Library environments, and possibly in all realistic environments."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-04-07T12:06:01.027Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://github.com/karelzak/util-linux/issues/1395"
        },
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          "url": "https://github.com/karelzak/util-linux/commit/1c9143d0c1f979c3daf10e1c37b5b1e916c22a1c"
        },
        {
          "url": "https://security.netapp.com/advisory/ntap-20210902-0002/"
        },
        {
          "name": "GLSA-202401-08",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://security.gentoo.org/glsa/202401-08"
        },
        {
          "name": "[debian-lts-announce] 20240407 [SECURITY] [DLA 3782-1] util-linux security update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2024/04/msg00005.html"
        }
      ],
      "tags": [
        "disputed"
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  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2021-37600",
    "datePublished": "2021-07-28T00:00:00.000Z",
    "dateReserved": "2021-07-28T00:00:00.000Z",
    "dateUpdated": "2024-08-04T01:23:01.417Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

Detection rules are retrieved from Rulezet.

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.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.