CVE-2017-7261: Input Validation
First published: Fri Mar 24 2017(Updated: )
In was found that in the Linux kernel in vmw_surface_define_ioctl() function in 'drivers/gpu/drm/vmwgfx/vmwgfx_surface.c' file, a 'num_sizes' parameter is assigned a user-controlled value which is not checked if it is zero. This is used in a call to kmalloc() and later leads to dereferencing ZERO_SIZE_PTR, which in turn leads to a GPF and possibly to a kernel panic. References: <a href="http://seclists.org/oss-sec/2017/q1/684">http://seclists.org/oss-sec/2017/q1/684</a> Proposed patch: <a href="https://lists.freedesktop.org/archives/dri-devel/2017-March/136814.html">https://lists.freedesktop.org/archives/dri-devel/2017-March/136814.html</a> <a href="http://marc.info/?t=149037004200005&r=1&w=2">http://marc.info/?t=149037004200005&r=1&w=2</a>
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | <=4.10.5 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.119-1 6.11.10-1 6.12.5-1 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- http://marc.info/?t=149037004200005&r=1&w=2
- http://www.securityfocus.com/bid/97096
- https://bugzilla.redhat.com/show_bug.cgi?id=1435719
- https://lists.freedesktop.org/archives/dri-devel/2017-March/136814.html
- http://marc.info/?t=149037004200005&r=1&w=2
- https://launchpad.net/bugs/cve/CVE-2017-7261
- http://seclists.org/oss-sec/2017/q1/684
- https://lwn.net/Articles/236920/
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1435740
- https://access.redhat.com/support/policy/updates/errata/
- https://git.kernel.org/linus/36274ab8c596f1240c606bb514da329add2a1bcd
- https://security-tracker.debian.org/tracker/CVE-2017-7261
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7261
- https://nvd.nist.gov/vuln/detail/CVE-2017-7261
- https://ubuntu.com/security/CVE-2017-7261
Frequently Asked Questions
What is the vulnerability ID of this vulnerability?
The vulnerability ID is CVE-2017-7261.
What is the severity of CVE-2017-7261?
The severity of CVE-2017-7261 is low.
What is the affected software of CVE-2017-7261?
The affected software of CVE-2017-7261 includes various Linux kernel versions up to 4.10.5.
How can local users exploit CVE-2017-7261?
Local users can exploit CVE-2017-7261 by crafting a malicious ioctl request to the vmw_surface_define_ioctl function in the Linux kernel.
Is there a fix available for CVE-2017-7261?
Yes, the fix for CVE-2017-7261 is available in Linux kernel version 4.11~ and later.
- collector/nvd-index
- agent/type
- agent/remedy
- collector/launchpad-cve
- source/Launchpad
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2017-7261
- agent/author
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup
- agent/severity
- agent/weakness
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/references
- agent/tags
- agent/first-publish-date
- collector/usn-cve
- source/Ubuntu
- agent/event
- agent/description
- collector/security-tracker-debian
- source/Debian
- agent/softwarecombine
- agent/trending
- vendor/linux
- canonical/linux linux kernel
- version/linux linux kernel/4.10.5
- package-manager/debian