Vulnerability-Lookup

CNVD-2020-19881

Vulnerability from cnvd - Published: 2020-03-28

Title

Linux kernel内核栈损坏漏洞

Description

Linux kernel是一种计算机操作系统内核，以C语言和汇编语言写成，符合POSIX标准，按GNU通用公共许可证发行。 Linux kernel 5.5.8之前版本存在内核栈损坏漏洞。该漏洞源于drivers/vhost/net.c中的get_raw_sockett缺少对sk_family字段的验证。攻击者可通过精心设计的系统调用利用该漏洞导致内核栈损坏。

Severity

中

Patch Name

Linux kernel内核栈损坏漏洞的补丁

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=42d84c8490f9f0931786f1623191fcab397c3d64

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-10942

Impacted products

Name
Linux Linux kernel <5.5.8

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-10942",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-10942"
    }
  },
  "description": "Linux kernel\u662f\u4e00\u79cd\u8ba1\u7b97\u673a\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\uff0c\u4ee5C\u8bed\u8a00\u548c\u6c47\u7f16\u8bed\u8a00\u5199\u6210\uff0c\u7b26\u5408POSIX\u6807\u51c6\uff0c\u6309GNU\u901a\u7528\u516c\u5171\u8bb8\u53ef\u8bc1\u53d1\u884c\u3002\n\nLinux kernel 5.5.8\u4e4b\u524d\u7248\u672c\u5b58\u5728\u5185\u6838\u6808\u635f\u574f\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8edrivers/vhost/net.c\u4e2d\u7684get_raw_sockett\u7f3a\u5c11\u5bf9sk_family\u5b57\u6bb5\u7684\u9a8c\u8bc1\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u7cbe\u5fc3\u8bbe\u8ba1\u7684\u7cfb\u7edf\u8c03\u7528\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u5185\u6838\u6808\u635f\u574f\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=42d84c8490f9f0931786f1623191fcab397c3d64",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-19881",
  "openTime": "2020-03-28",
  "patchDescription": "Linux kernel\u662f\u4e00\u79cd\u8ba1\u7b97\u673a\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\uff0c\u4ee5C\u8bed\u8a00\u548c\u6c47\u7f16\u8bed\u8a00\u5199\u6210\uff0c\u7b26\u5408POSIX\u6807\u51c6\uff0c\u6309GNU\u901a\u7528\u516c\u5171\u8bb8\u53ef\u8bc1\u53d1\u884c\u3002\r\n\r\nLinux kernel 5.5.8\u4e4b\u524d\u7248\u672c\u5b58\u5728\u5185\u6838\u6808\u635f\u574f\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8edrivers/vhost/net.c\u4e2d\u7684get_raw_sockett\u7f3a\u5c11\u5bf9sk_family\u5b57\u6bb5\u7684\u9a8c\u8bc1\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u7cbe\u5fc3\u8bbe\u8ba1\u7684\u7cfb\u7edf\u8c03\u7528\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u5185\u6838\u6808\u635f\u574f\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\u5185\u6838\u6808\u635f\u574f\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Linux Linux kernel \u003c5.5.8"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-10942",
  "serverity": "\u4e2d",
  "submitTime": "2020-03-25",
  "title": "Linux kernel\u5185\u6838\u6808\u635f\u574f\u6f0f\u6d1e"
}

CVE-2020-10942 (GCVE-0-2020-10942)

Vulnerability from cvelistv5 – Published: 2020-03-24 21:03 – Updated: 2024-08-04 11:21

Summary

In the Linux kernel before 5.5.8, get_raw_socket in drivers/vhost/net.c lacks validation of an sk_family field, which might allow attackers to trigger kernel stack corruption via crafted system calls.

Severity

No CVSS data available.

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 28/100 over 2310 records in the last 180 days details

References

15 references

URL	Tags
https://git.kernel.org/linus/42d84c8490f9f0931786…	x_refsource_MISC
https://lkml.org/lkml/2020/2/15/125	x_refsource_MISC
https://cdn.kernel.org/pub/linux/kernel/v5.x/Chan…	x_refsource_MISC
https://security.netapp.com/advisory/ntap-2020040…	x_refsource_CONFIRM
http://www.openwall.com/lists/oss-security/2020/04/15/4	mailing-listx_refsource_MLIST
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://www.debian.org/security/2020/dsa-4667	vendor-advisoryx_refsource_DEBIAN
https://usn.ubuntu.com/4344-1/	vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/4345-1/	vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/4342-1/	vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/4364-1/	vendor-advisoryx_refsource_UBUNTU
https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST
https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST
https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST
https://www.debian.org/security/2020/dsa-4698	vendor-advisoryx_refsource_DEBIAN

Show details on NVD website

JSON

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    "dateUpdated": "2024-08-04T11:21:14.585Z",
    "state": "PUBLISHED"
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  "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.

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.

Action not permitted

CNVD-2020-19881

CVE-2020-10942 (GCVE-0-2020-10942)

Tags

Sightings

Nomenclature

Related by attack behaviour