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Linux Kernel における情報漏えいに関する脆弱性
Title Linux Kernel における情報漏えいに関する脆弱性
Summary

Linux Kernel には、情報漏えいに関する脆弱性が存在します。

Possible impacts 情報を取得される可能性があります。
Solution

ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。
Publication Date June 2, 2017, midnight
Registration Date July 11, 2017, 4:17 p.m.
Last Update July 11, 2017, 4:17 p.m.
CVSS3.0 : 警告
Score 5.5
Vector CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS2.0 : 警告
Score 4.9
Vector AV:L/AC:L/Au:N/C:C/I:N/A:N
Affected System
Linux
Linux Kernel 4.11.4 まで
CVE (情報セキュリティ 共通脆弱性識別子)
CWE (共通脆弱性タイプ一覧)
ベンダー情報
Change Log
No Changed Details Date of change
0 [2017年07月11日]
  掲載		 Feb. 17, 2018, 10:37 a.m.
NVD Vulnerability Information
CVE-2017-9605
Summary

The vmw_gb_surface_define_ioctl function (accessible via DRM_IOCTL_VMW_GB_SURFACE_CREATE) in drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel through 4.11.4 defines a backup_handle variable but does not give it an initial value. If one attempts to create a GB surface, with a previously allocated DMA buffer to be used as a backup buffer, the backup_handle variable does not get written to and is then later returned to user space, allowing local users to obtain sensitive information from uninitialized kernel memory via a crafted ioctl call.

Publication Date June 14, 2017, 4:29 a.m.
Registration Date Jan. 26, 2021, 1:31 p.m.
Last Update Nov. 21, 2024, 12:36 p.m.
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 4.11.4
Related information, measures and tools
Common Vulnerabilities List