CVE-2017-9605: linux linux_kernel
Vulnerability summary
CVE-2017-9605 is a medium (CVSS 5.5) vulnerability in linux linux_kernel. EPSS estimates a 0.40% chance of exploitation in the next 30 days, higher than 34.2% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 10 · Related 5Timeline
- 13-06-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS trend
Probability
0.40%
Chance of exploitation in the next 30 days
Percentile
34%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.40% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu16 products
- linux< 3.13.0-125.174 | < 4.4.0-87.110
- linux-aws< 4.4.0-1026.35
- linux-azureAll versions (No fix recorded)
- linux-azure-fdeAll versions (No fix recorded)
- linux-gcpAll versions (No fix recorded)
Debian1 product
- linux< 4.11.6-1
Linux1 product
- linux_kernel≤ 4.11.4
3 vendors · 18 products
References
17 links- github.com/torvalds/linux/commit/07678eca2cf9c9a18584e546c2b2a0d0c9a3150cX Refsource CONFIRMIssue TrackingPatchThird Party Advisory