CVE-2017-9605
MediumThe 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.
CVSS 3.0 score
5.5
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness type
CWE-200CVE-2017-9605 is a Information Exposure vulnerability
What is Information Exposure?
The product exposes sensitive information to an actor not authorised to see it. Learn more on MITRE CWE
References
5 total-
Issue Tracking Patch Third Party Advisory
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Issue Tracking Patch Third Party Advisory
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Debian Securityhttp://www.debian.org/security/2017/dsa-3927
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Debian Securityhttp://www.debian.org/security/2017/dsa-3945
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Securityfocushttp://www.securityfocus.com/bid/99095Third Party Advisory VDB Entry
Frequently asked questions
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What is CVE-2017-9605?
CVE-2017-9605 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as an Information Exposure flaw (CWE-200) . CVE-2017-9605 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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What is the CVSS score for CVE-2017-9605?
CVE-2017-9605 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.0). The vector string is
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N. -
Is there a patch available for CVE-2017-9605?
Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2017-9605 patch availability.
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Is CVE-2017-9605 actively exploited?
No. CVE-2017-9605 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.