Vulnerability-Lookup

CNVD-2022-31831

Vulnerability from cnvd - Published: 2022-04-24

Title

Google fscrypt输入验证错误漏洞

Description

Google Fscrypt是美国谷歌（Google）公司的一个开源高级工具。用于管理 Linux 本机文件系统加密。 Google fscrypt存在输入验证错误漏洞，该漏洞源于用户提供的输入未充分验证，远程攻击者可利用该漏洞创建阻止其他用户登录的fscrypt元数据文件来导致拒绝服务进入系统。

Severity

低

Patch Name

Google fscrypt输入验证错误漏洞的补丁

Patch Description

Google Fscrypt是美国谷歌（Google）公司的一个开源高级工具。用于管理 Linux 本机文件系统加密。 Google fscrypt存在输入验证错误漏洞，该漏洞源于用户提供的输入未充分验证，远程攻击者可利用该漏洞创建阻止其他用户登录的fscrypt元数据文件来导致拒绝服务进入系统。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/google/fscrypt/pull/346

Reference

https://github.com/google/fscrypt/pull/346

Impacted products

Name
Google fscrypt <0.3.3

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2022-25327",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2022-25327"
    }
  },
  "description": "Google Fscrypt\u662f\u7f8e\u56fd\u8c37\u6b4c\uff08Google\uff09\u516c\u53f8\u7684\u4e00\u4e2a\u5f00\u6e90\u9ad8\u7ea7\u5de5\u5177\u3002\u7528\u4e8e\u7ba1\u7406 Linux \u672c\u673a\u6587\u4ef6\u7cfb\u7edf\u52a0\u5bc6\u3002\n\nGoogle fscrypt\u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7528\u6237\u63d0\u4f9b\u7684\u8f93\u5165\u672a\u5145\u5206\u9a8c\u8bc1\uff0c\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u521b\u5efa\u963b\u6b62\u5176\u4ed6\u7528\u6237\u767b\u5f55\u7684fscrypt\u5143\u6570\u636e\u6587\u4ef6\u6765\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u8fdb\u5165\u7cfb\u7edf\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/google/fscrypt/pull/346",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-31831",
  "openTime": "2022-04-24",
  "patchDescription": "Google Fscrypt\u662f\u7f8e\u56fd\u8c37\u6b4c\uff08Google\uff09\u516c\u53f8\u7684\u4e00\u4e2a\u5f00\u6e90\u9ad8\u7ea7\u5de5\u5177\u3002\u7528\u4e8e\u7ba1\u7406 Linux \u672c\u673a\u6587\u4ef6\u7cfb\u7edf\u52a0\u5bc6\u3002\r\n\r\nGoogle fscrypt\u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7528\u6237\u63d0\u4f9b\u7684\u8f93\u5165\u672a\u5145\u5206\u9a8c\u8bc1\uff0c\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u521b\u5efa\u963b\u6b62\u5176\u4ed6\u7528\u6237\u767b\u5f55\u7684fscrypt\u5143\u6570\u636e\u6587\u4ef6\u6765\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u8fdb\u5165\u7cfb\u7edf\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": "Google fscrypt\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Google fscrypt \u003c0.3.3"
  },
  "referenceLink": "https://github.com/google/fscrypt/pull/346",
  "serverity": "\u4f4e",
  "submitTime": "2022-02-28",
  "title": "Google fscrypt\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e"
}

CVE-2022-25327 (GCVE-0-2022-25327)

Vulnerability from cvelistv5 – Published: 2022-02-25 11:00 – Updated: 2025-04-21 13:56

Title

Local Denial of Service in fscrypt PAM module

Summary

The PAM module for fscrypt doesn't adequately validate fscrypt metadata files, allowing users to create malicious metadata files that prevent other users from logging in. A local user can cause a denial of service by creating a fscrypt metadata file that prevents other users from logging into the system. We recommend upgrading to version 0.3.3 or above

Severity

5.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-21 13:36 UTC

CWE

CWE-255 - Credentials Management

Assigner

Google Google root

References

1 reference

URL	Tags
https://github.com/google/fscrypt/pull/346	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Google LLC	fscrypt	Affected: unspecified , ≤ 0.3.2 (custom)

Date Public

2022-02-16 00:00

Credits

Matthias Gerstner of SUSE

Show details on NVD website

JSON

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{
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      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T04:36:06.870Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/google/fscrypt/pull/346"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
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                "id": "CVE-2022-25327",
                "options": [
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                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-21T13:36:10.800295Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-21T13:56:22.478Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
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        {
          "product": "fscrypt",
          "vendor": "Google LLC",
          "versions": [
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        }
      ],
      "metrics": [
        {
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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.

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.