Vulnerability-Lookup

CNVD-2020-61025

Vulnerability from cnvd - Published: 2020-11-07

Title

Linux kernel代码问题漏洞（CNVD-2020-61025）

Description

Linux kernel是美国Linux基金会发布的开源操作系统Linux所使用的内核。 Linux kernel con_font_op()存在代码问题漏洞，该漏洞源于网络系统或产品的代码开发过程中存在设计或实现不当的问题，攻击者可以利用此漏洞使用被释放的内存，从而导致拒绝服务或执行自定义代码。

Severity

高

Formal description

厂商尚未提供漏洞修复方案，请关注厂商主页更新： https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ca4463bf8438b403596edd0ec961ca0d4fbe0220

Reference

https://access.redhat.com/security/cve/cve-2020-25668

Impacted products

Name
Linux Linux kernel

Show details on source website

JSON

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    "cve": {
      "cveNumber": "CVE-2020-25668",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-25668"
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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-61025",
  "openTime": "2020-11-07",
  "products": {
    "product": "Linux Linux kernel"
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  "referenceLink": "https://access.redhat.com/security/cve/cve-2020-25668",
  "serverity": "\u9ad8",
  "submitTime": "2020-11-03",
  "title": "Linux kernel\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e\uff08CNVD-2020-61025\uff09"
}

CVE-2020-25668 (GCVE-0-2020-25668)

Vulnerability from cvelistv5 – Published: 2021-05-26 11:11 – Updated: 2024-08-04 15:40

Summary

A flaw was found in Linux Kernel because access to the global variable fg_console is not properly synchronized leading to a use after free in con_font_op.

Severity

No CVSS data available.

CWE

CWE-362 - -> CWE-416

Assigner

redhat redhat root Scorecard

References

9 references

URL	Tags
http://www.openwall.com/lists/oss-security/2020/10/30/1	mailing-listx_refsource_MLIST
http://www.openwall.com/lists/oss-security/2020/11/04/3	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.openwall.com/lists/oss-security/2020/…	x_refsource_MISC
https://www.openwall.com/lists/oss-security/2020/…	x_refsource_MISC
https://bugzilla.redhat.com/show_bug.cgi?id=1893287%2C	x_refsource_MISC
https://git.kernel.org/pub/scm/linux/kernel/git/t…	x_refsource_MISC
https://security.netapp.com/advisory/ntap-2021070…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
n/a	Linux Kernel	Affected: 5.9.2

Show details on NVD website

JSON

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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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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.

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CNVD-2020-61025

CVE-2020-25668 (GCVE-0-2020-25668)

Tags

Sightings

Nomenclature

Related by attack behaviour