Vulnerability-Lookup

CNVD-2018-07889

Vulnerability from cnvd - Published: 2018-04-19

Title

Linux kernel拒绝服务漏洞（CNVD-2018-07889）

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 4.13.5之前版本中的arch/powerpc/kernel/ptrace.c中的flush_tmregs_to_thread函数存在拒绝服务漏洞。该漏洞产生的原因是缺少处理器特性检查和核心转储路径中错误使用事务内存（TM）指令。攻击者可利用POWER主机上的核心转储期间的非特权用户空间利用该漏洞导致客户机内核崩溃。

Severity

高

Patch Name

Linux kernel拒绝服务漏洞（CNVD-2018-07889）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://github.com/torvalds/linux/commit/c1fa0768a8713b135848f78fd43ffc208d8ded70

Reference

https://nvd.nist.gov/vuln/detail/CVE-2018-1091

Impacted products

Name
Linux kernel <4.13.5

Show details on source website

JSON

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      "cveNumber": "CVE-2018-1091"
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  "discovererName": "Adam Mari\u0161",
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  "number": "CNVD-2018-07889",
  "openTime": "2018-04-19",
  "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 4.13.5\u4e4b\u524d\u7248\u672c\u4e2d\u7684arch/powerpc/kernel/ptrace.c\u4e2d\u7684flush_tmregs_to_thread\u51fd\u6570\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u4ea7\u751f\u7684\u539f\u56e0\u662f\u7f3a\u5c11\u5904\u7406\u5668\u7279\u6027\u68c0\u67e5\u548c\u6838\u5fc3\u8f6c\u50a8\u8def\u5f84\u4e2d\u9519\u8bef\u4f7f\u7528\u4e8b\u52a1\u5185\u5b58\uff08TM\uff09\u6307\u4ee4\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528POWER\u4e3b\u673a\u4e0a\u7684\u6838\u5fc3\u8f6c\u50a8\u671f\u95f4\u7684\u975e\u7279\u6743\u7528\u6237\u7a7a\u95f4\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u5ba2\u6237\u673a\u5185\u6838\u5d29\u6e83\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",
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  "serverity": "\u9ad8",
  "submitTime": "2018-03-28",
  "title": "Linux kernel\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2018-07889\uff09"
}

CVE-2018-1091 (GCVE-0-2018-1091)

Vulnerability from cvelistv5 – Published: 2018-03-27 21:00 – Updated: 2024-08-05 03:51

Summary

In the flush_tmregs_to_thread function in arch/powerpc/kernel/ptrace.c in the Linux kernel before 4.13.5, a guest kernel crash can be triggered from unprivileged userspace during a core dump on a POWER host due to a missing processor feature check and an erroneous use of transactional memory (TM) instructions in the core dump path, leading to a denial of service.

Severity

No CVSS data available.

CWE

CWE-391

Assigner

redhat redhat root

References

8 references

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1558149	x_refsource_CONFIRM
https://www.kernel.org/pub/linux/kernel/v4.x/Chan…	x_refsource_CONFIRM
https://marc.info/?l=linuxppc-embedded&m=15053553…	x_refsource_CONFIRM
https://access.redhat.com/security/cve/cve-2018-1091	x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2018:1318	vendor-advisoryx_refsource_REDHAT
http://git.kernel.org/cgit/linux/kernel/git/torva…	x_refsource_CONFIRM
https://github.com/torvalds/linux/commit/c1fa0768…	x_refsource_CONFIRM
http://openwall.com/lists/oss-security/2018/03/27/4	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
n/a	Linux kernel v4.13 and newer	Affected: Linux kernel v4.13 and newer

Date Public

2018-03-27 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.

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-2018-07889

CVE-2018-1091 (GCVE-0-2018-1091)

Tags

Sightings

Nomenclature

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