Vulnerability-Lookup

CNVD-2018-06691

Vulnerability from cnvd - Published: 2018-03-29

Title

Linux kernel内核安全保护绕过漏洞

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。 4.15.7及更早版本的Linux kernel中的drivers/block/floppy.c中的fd_locked_ioctl函数存在内核安全保护绕过漏洞。该漏洞产生的原因是软盘驱动程序在响应FDGETPRM ioctl时将内核指针复制到用户内存。攻击者可发送FDGETPRM ioctl并使用获得的内核指针利用该漏洞发现内核代码和数据的位置并绕过KASLR等内核安全保护。

Severity

中

Patch Name

Linux kernel内核安全保护绕过漏洞的补丁

Patch Description

Formal description

厂商已发布漏洞修复程序，请及时关注更新： https://lkml.org/lkml/2018/3/7/1116

Reference

https://nvd.nist.gov/vuln/detail/CVE-2018-7755

Impacted products

Name
Linux kernel <=4.15.7

Show details on source website

JSON

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    "cve": {
      "cveNumber": "CVE-2018-7755"
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  "number": "CNVD-2018-06691",
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  "submitTime": "2018-03-09",
  "title": "Linux kernel\u5185\u6838\u5b89\u5168\u4fdd\u62a4\u7ed5\u8fc7\u6f0f\u6d1e"
}

CVE-2018-7755 (GCVE-0-2018-7755)

Vulnerability from cvelistv5 – Published: 2018-03-08 07:00 – Updated: 2024-08-05 06:37

Summary

An issue was discovered in the fd_locked_ioctl function in drivers/block/floppy.c in the Linux kernel through 4.15.7. The floppy driver will copy a kernel pointer to user memory in response to the FDGETPRM ioctl. An attacker can send the FDGETPRM ioctl and use the obtained kernel pointer to discover the location of kernel code and data and bypass kernel security protections such as KASLR.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

13 references

URL	Tags
https://usn.ubuntu.com/3695-1/	vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3696-1/	vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3695-2/	vendor-advisoryx_refsource_UBUNTU
https://lists.debian.org/debian-lts-announce/2018…	mailing-listx_refsource_MLIST
https://usn.ubuntu.com/3697-1/	vendor-advisoryx_refsource_UBUNTU
https://lkml.org/lkml/2018/3/7/1116	x_refsource_MISC
https://usn.ubuntu.com/3697-2/	vendor-advisoryx_refsource_UBUNTU
https://www.debian.org/security/2018/dsa-4308	vendor-advisoryx_refsource_DEBIAN
https://usn.ubuntu.com/3698-1/	vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3696-2/	vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3698-2/	vendor-advisoryx_refsource_UBUNTU
https://access.redhat.com/errata/RHSA-2019:2043	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2029	vendor-advisoryx_refsource_REDHAT

Date Public

2018-03-08 00:00

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.

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.