Vulnerability-Lookup

CNVD-2020-18533

Vulnerability from cnvd - Published: 2020-03-20

Title

Red Hat LVM2内存破坏漏洞

Description

LVM2是一款开源的逻辑卷管理器。 Red Hat LVM2 2.02版本中的daemons/lvmetad/lvmetad-core.c文件的vg_lookup存在安全漏洞，该漏洞源于程序未能正确管理内存。攻击者可利用该漏洞泄露lvmetad内存。

Severity

低

Patch Name

Red Hat LVM2内存破坏漏洞的补丁

Patch Description

LVM2是一款开源的逻辑卷管理器。 Red Hat LVM2 2.02版本中的daemons/lvmetad/lvmetad-core.c文件的vg_lookup存在安全漏洞，该漏洞源于程序未能正确管理内存。攻击者可利用该漏洞泄露lvmetad内存。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://sourceware.org/git/?p=lvm2.git;a=commit;h=bcf9556b8fcd16ad8997f80cc92785f295c66701

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-8991

Impacted products

Name
Red Hat LVM2 2.02

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-8991",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-8991"
    }
  },
  "description": "LVM2\u662f\u4e00\u6b3e\u5f00\u6e90\u7684\u903b\u8f91\u5377\u7ba1\u7406\u5668\u3002\n\nRed Hat LVM2 2.02\u7248\u672c\u4e2d\u7684daemons/lvmetad/lvmetad-core.c\u6587\u4ef6\u7684vg_lookup\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u7ba1\u7406\u5185\u5b58\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u6cc4\u9732lvmetad\u5185\u5b58\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0:\r\nhttps://sourceware.org/git/?p=lvm2.git;a=commit;h=bcf9556b8fcd16ad8997f80cc92785f295c66701",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-18533",
  "openTime": "2020-03-20",
  "patchDescription": "LVM2\u662f\u4e00\u6b3e\u5f00\u6e90\u7684\u903b\u8f91\u5377\u7ba1\u7406\u5668\u3002\r\n\r\nRed Hat LVM2 2.02\u7248\u672c\u4e2d\u7684daemons/lvmetad/lvmetad-core.c\u6587\u4ef6\u7684vg_lookup\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u7ba1\u7406\u5185\u5b58\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u6cc4\u9732lvmetad\u5185\u5b58\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": "Red Hat LVM2\u5185\u5b58\u7834\u574f\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Red Hat LVM2 2.02"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-8991",
  "serverity": "\u4f4e",
  "submitTime": "2020-03-09",
  "title": "Red Hat LVM2\u5185\u5b58\u7834\u574f\u6f0f\u6d1e"
}

CVE-2020-8991 (GCVE-0-2020-8991)

Vulnerability from cvelistv5 – Published: 2020-02-14 04:27 – Updated: 2024-08-04 10:19 Disputed

Summary

vg_lookup in daemons/lvmetad/lvmetad-core.c in LVM2 2.02 mismanages memory, leading to an lvmetad memory leak, as demonstrated by running pvs. NOTE: RedHat disputes CVE-2020-8991 as not being a vulnerability since there’s no apparent route to either privilege escalation or to denial of service through the bug

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-04-29 19:46 UTC

CWE

Assigner

mitre mitre root Scorecard

References

1 reference

URL	Tags
https://sourceware.org/git/?p=lvm2.git%3Ba=commit…	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

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                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-04-29T19:46:40.141633Z",
                "version": "2.0.3"
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          }
        ],
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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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Action not permitted

CNVD-2020-18533

CVE-2020-8991 (GCVE-0-2020-8991)

Tags

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Nomenclature

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