Vulnerability-Lookup

CNVD-2019-42385

Vulnerability from cnvd - Published: 2019-11-26

Title

Linux kernel空指针解引用漏洞（CNVD-2019-42385）

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 5.3.12及更早版本中的fs/btrfs/ctree.c中的btrfs_root_node存在空指针解引用漏洞。该漏洞源于rcu_dereference(root->node)可以为零。攻击者可利用该漏洞导致拒绝服务。

Severity

中

Formal description

厂商尚未提供漏洞修复方案，请关注厂商主页更新： https://www.kernel.org/

Reference

https://nvd.nist.gov/vuln/detail/CVE-2019-19036

Impacted products

Name
Linux Linux kernel <=5.3.12

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    "cve": {
      "cveNumber": "CVE-2019-19036",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2019-19036"
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  "formalWay": "\u5382\u5546\u5c1a\u672a\u63d0\u4f9b\u6f0f\u6d1e\u4fee\u590d\u65b9\u6848\uff0c\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u66f4\u65b0\uff1a\r\nhttps://www.kernel.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-42385",
  "openTime": "2019-11-26",
  "products": {
    "product": "Linux Linux kernel \u003c=5.3.12"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2019-19036",
  "serverity": "\u4e2d",
  "submitTime": "2019-11-21",
  "title": "Linux kernel\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\uff08CNVD-2019-42385\uff09"
}

CVE-2019-19036 (GCVE-0-2019-19036)

Vulnerability from cvelistv5 – Published: 2019-11-21 02:00 – Updated: 2024-08-05 02:09

Summary

btrfs_root_node in fs/btrfs/ctree.c in the Linux kernel through 5.3.12 allows a NULL pointer dereference because rcu_dereference(root->node) can be zero.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

5 references

URL	Tags
https://github.com/bobfuzzer/CVE/tree/master/CVE-…	x_refsource_MISC
https://security.netapp.com/advisory/ntap-2019120…	x_refsource_CONFIRM
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://usn.ubuntu.com/4414-1/	vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/4439-1/	vendor-advisoryx_refsource_UBUNTU

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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.