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CVE-2017-9605

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.

Risk Information

Base Score
5.5
MODERATE
Vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS Score
Exploitation Probability
0.112

Associated Vulnerability

VulnerabilityOS Platform
Linux hardware enablement (HWE) kernel (USN-3342-2) linux-image-generic-hwe-16.04_4.10.0.28.31_i386.debLinux
Linux hardware enablement (HWE) kernel (USN-3342-2) linux-image-generic-hwe-16.04_4.10.0.28.31_amd64.debLinux
Linux hardware enablement (HWE) kernel (USN-3342-2) linux-image-lowlatency-hwe-16.04_4.10.0.28.31_i386.debLinux
Linux hardware enablement (HWE) kernel (USN-3342-2) linux-image-lowlatency-hwe-16.04_4.10.0.28.31_amd64.debLinux
Linux kernel (USN-3358-1) linux-image-generic_4.10.0.28.29_i386.debLinux
Linux kernel (USN-3358-1) linux-image-generic_4.10.0.28.29_amd64.debLinux
Linux kernel (USN-3358-1) linux-image-lowlatency_4.10.0.28.29_i386.debLinux
Linux kernel (USN-3358-1) linux-image-lowlatency_4.10.0.28.29_amd64.debLinux
Linux kernel (USN-3358-1) linux-image-4.10.0-28-generic_4.10.0-28.32_i386.debLinux
Linux kernel (USN-3358-1) linux-image-4.10.0-28-generic_4.10.0-28.32_amd64.debLinux
Linux kernel (USN-3358-1) linux-image-4.10.0-28-lowlatency_4.10.0-28.32_i386.debLinux
Linux kernel (USN-3358-1) linux-image-4.10.0-28-lowlatency_4.10.0-28.32_amd64.debLinux
Linux hardware enablement (HWE) kernel (USN-3371-1) linux-image-4.10.0-28-generic_4.10.0-28.32~16.04.2_i386.debLinux
Linux hardware enablement (HWE) kernel (USN-3371-1) linux-image-4.10.0-28-generic_4.10.0-28.32~16.04.2_amd64.debLinux
Linux hardware enablement (HWE) kernel (USN-3371-1) linux-image-generic-hwe-16.04_4.10.0.28.31_i386.debLinux
Linux hardware enablement (HWE) kernel (USN-3371-1) linux-image-generic-hwe-16.04_4.10.0.28.31_amd64.debLinux
Linux hardware enablement (HWE) kernel (USN-3371-1) linux-image-4.10.0-28-lowlatency_4.10.0-28.32~16.04.2_i386.debLinux
Linux hardware enablement (HWE) kernel (USN-3371-1) linux-image-4.10.0-28-lowlatency_4.10.0-28.32~16.04.2_amd64.debLinux
Linux hardware enablement (HWE) kernel (USN-3371-1) linux-image-lowlatency-hwe-16.04_4.10.0.28.31_i386.debLinux
Linux hardware enablement (HWE) kernel (USN-3371-1) linux-image-lowlatency-hwe-16.04_4.10.0.28.31_amd64.debLinux
Kernel-uek update (ELSA-2020-5962) kernel-uek-4.1.12-124.45.6.el6uek.x86_64.rpmLinux
Kernel-uek-debug update (ELSA-2020-5962) kernel-uek-debug-4.1.12-124.45.6.el6uek.x86_64.rpmLinux
Kernel-uek-debug-devel update (ELSA-2020-5962) kernel-uek-debug-devel-4.1.12-124.45.6.el6uek.x86_64.rpmLinux
Kernel-uek-devel update (ELSA-2020-5962) kernel-uek-devel-4.1.12-124.45.6.el6uek.x86_64.rpmLinux
Kernel-uek-doc update (ELSA-2020-5962) kernel-uek-doc-4.1.12-124.45.6.el6uek.noarch.rpmLinux
Kernel-uek-firmware update (ELSA-2020-5962) kernel-uek-firmware-4.1.12-124.45.6.el6uek.noarch.rpmLinux
Kernel-uek-firmware update (ELSA-2020-5962) kernel-uek-firmware-4.1.12-124.45.6.el7uek.noarch.rpmLinux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234