Vulnerability-Lookup

CNVD-2017-33607

Vulnerability from cnvd - Published: 2017-11-13

Title

Linux kernel x86/fpu(Floating Point Unit)子系统信息泄露漏洞

Description

Linux kernel是美国Linux基金会发布的操作系统Linux所使用的内核。x86/fpu (Floating Point Unit) subsystem是其中的一个32位浮点单元子系统。 Linux kernel 4.13.5之前的版本中的x86/fpu(Floating Point Unit)子系统存在安全漏洞。本地攻击者可利用该漏洞读取敏感信息。

Severity

低

Patch Name

Linux kernel x86/fpu(Floating Point Unit)子系统信息泄露漏洞的补丁

Patch Description

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=814fb7bb7db5433757d76f4c4502c96fc53b0b5e

Reference

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5

Impacted products

Name
Linux kernel <4.13.5

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-15537"
    }
  },
  "description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002x86/fpu (Floating Point Unit) subsystem\u662f\u5176\u4e2d\u7684\u4e00\u4e2a32\u4f4d\u6d6e\u70b9\u5355\u5143\u5b50\u7cfb\u7edf\u3002\r\n\r\nLinux kernel 4.13.5\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u7684x86/fpu(Floating Point Unit)\u5b50\u7cfb\u7edf\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u8bfb\u53d6\u654f\u611f\u4fe1\u606f\u3002",
  "discovererName": "Unknow",
  "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=814fb7bb7db5433757d76f4c4502c96fc53b0b5e",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-33607",
  "openTime": "2017-11-13",
  "patchDescription": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002x86/fpu (Floating Point Unit) subsystem\u662f\u5176\u4e2d\u7684\u4e00\u4e2a32\u4f4d\u6d6e\u70b9\u5355\u5143\u5b50\u7cfb\u7edf\u3002\r\n\r\nLinux kernel 4.13.5\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u7684x86/fpu(Floating Point Unit)\u5b50\u7cfb\u7edf\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u8bfb\u53d6\u654f\u611f\u4fe1\u606f\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 x86/fpu(Floating Point Unit)\u5b50\u7cfb\u7edf\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Linux kernel \u003c4.13.5"
  },
  "referenceLink": "http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5",
  "serverity": "\u4f4e",
  "submitTime": "2017-10-30",
  "title": "Linux kernel x86/fpu(Floating Point Unit)\u5b50\u7cfb\u7edf\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e"
}

CVE-2017-15537 (GCVE-0-2017-15537)

Vulnerability from cvelistv5 – Published: 2017-10-17 18:00 – Updated: 2024-08-05 19:57

Summary

The x86/fpu (Floating Point Unit) subsystem in the Linux kernel before 4.13.5, when a processor supports the xsave feature but not the xsaves feature, does not correctly handle attempts to set reserved bits in the xstate header via the ptrace() or rt_sigreturn() system call, allowing local users to read the FPU registers of other processes on the system, related to arch/x86/kernel/fpu/regset.c and arch/x86/kernel/fpu/signal.c.

Severity

No CVSS data available.

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 29/100 over 2337 records in the last 180 days details

References

4 references

URL	Tags
https://github.com/torvalds/linux/commit/814fb7bb…	x_refsource_CONFIRM
http://www.kernel.org/pub/linux/kernel/v4.x/Chang…	x_refsource_CONFIRM
https://source.android.com/security/bulletin/pixe…	x_refsource_CONFIRM
http://git.kernel.org/cgit/linux/kernel/git/torva…	x_refsource_CONFIRM

Date Public

2017-10-17 00:00

Show details on NVD website

JSON

To clipboard

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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.

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