Vulnerability-Lookup

CNVD-2017-34130

Vulnerability from cnvd - Published: 2017-11-16

Title

Linux kernel本地内存破坏漏洞（CNVD-2017-34130）

Description

Linux kernel是美国Linux基金会发布的操作系统Linux所使用的内核。 Linux kernel中存在本地内存破坏漏洞。本地攻击者可借助任意值利用该漏洞覆盖任意位置或造成拒绝服务。

Severity

中

Patch Name

Linux kernel本地内存破坏漏洞（CNVD-2017-34130）的补丁

Patch Description

Linux kernel是美国Linux基金会发布的操作系统Linux所使用的内核。 Linux kernel中存在本地内存破坏漏洞。本地攻击者可借助任意值利用该漏洞覆盖任意位置或造成拒绝服务。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5d176f751ee3

Reference

http://www.securityfocus.com/bid/101264

Impacted products

Name
Linux Kernel

Show details on source website

JSON

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    "cve": [
      {
        "cveNumber": "101264"
      },
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        "cveNumber": "CVE-2017-1000255"
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  "description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux kernel\u4e2d\u5b58\u5728\u672c\u5730\u5185\u5b58\u7834\u574f\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u501f\u52a9\u4efb\u610f\u503c\u5229\u7528\u8be5\u6f0f\u6d1e\u8986\u76d6\u4efb\u610f\u4f4d\u7f6e\u6216\u9020\u6210\u62d2\u7edd\u670d\u52a1\u3002",
  "discovererName": "Michael Ellerman, Gustavo Romero, Breno Leitao, Paul Mackerras, and Cyril Bur",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5d176f751ee3",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-34130",
  "openTime": "2017-11-16",
  "patchDescription": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux kernel\u4e2d\u5b58\u5728\u672c\u5730\u5185\u5b58\u7834\u574f\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u501f\u52a9\u4efb\u610f\u503c\u5229\u7528\u8be5\u6f0f\u6d1e\u8986\u76d6\u4efb\u610f\u4f4d\u7f6e\u6216\u9020\u6210\u62d2\u7edd\u670d\u52a1\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\u672c\u5730\u5185\u5b58\u7834\u574f\u6f0f\u6d1e\uff08CNVD-2017-34130\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Linux Kernel"
  },
  "referenceLink": "http://www.securityfocus.com/bid/101264",
  "serverity": "\u4e2d",
  "submitTime": "2017-10-30",
  "title": "Linux kernel\u672c\u5730\u5185\u5b58\u7834\u574f\u6f0f\u6d1e\uff08CNVD-2017-34130\uff09"
}

CVE-2017-1000255 (GCVE-0-2017-1000255)

Vulnerability from cvelistv5 – Published: 2017-10-30 20:00 – Updated: 2024-08-05 22:00

Summary

On Linux running on PowerPC hardware (Power8 or later) a user process can craft a signal frame and then do a sigreturn so that the kernel will take an exception (interrupt), and use the r1 value *from the signal frame* as the kernel stack pointer. As part of the exception entry the content of the signal frame is written to the kernel stack, allowing an attacker to overwrite arbitrary locations with arbitrary values. The exception handling does produce an oops, and a panic if panic_on_oops=1, but only after kernel memory has been over written. This flaw was introduced in commit: "5d176f751ee3 (powerpc: tm: Enable transactional memory (TM) lazily for userspace)" which was merged upstream into v4.9-rc1. Please note that kernels built with CONFIG_PPC_TRANSACTIONAL_MEM=n are not vulnerable.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

3 references

URL	Tags
https://access.redhat.com/errata/RHSA-2018:0654	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2017-1000255	x_refsource_MISC
http://www.securityfocus.com/bid/101264	vdb-entryx_refsource_BID

Date Public

2017-10-30 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.