CVE-2017-7346: Input Validation
First published: Thu Mar 30 2017(Updated: )
It was found that in the Linux kernel in vmw_gb_surface_define_ioctl() function in 'drivers/gpu/drm/vmwgfx/vmwgfx_surface.c' file, a 'req->mip_levels' is a user-controlled value which is later used as a loop count limit. This allows local unprivileged user to cause a denial of service by a kernel lockup via a crafted ioctl call for a '/dev/dri/renderD*' device. References: <a href="http://seclists.org/oss-sec/2017/q1/696">http://seclists.org/oss-sec/2017/q1/696</a> Proposed patch: <a href="https://lists.freedesktop.org/archives/dri-devel/2017-March/137429.html">https://lists.freedesktop.org/archives/dri-devel/2017-March/137429.html</a> <a href="http://marc.info/?l=linux-kernel&m=149086968410117&w=2">http://marc.info/?l=linux-kernel&m=149086968410117&w=2</a> Upstream patch: <a href="https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee9c4e681ec4f58e42a83cb0c22a0289ade1aacf">https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee9c4e681ec4f58e42a83cb0c22a0289ade1aacf</a>
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | <=4.10.7 | |
| 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/?l=linux-kernel&m=149086968410117&w=2
- http://www.debian.org/security/2017/dsa-3927
- http://www.debian.org/security/2017/dsa-3945
- http://www.securityfocus.com/bid/97257
- https://bugzilla.redhat.com/show_bug.cgi?id=1437431
- https://lists.freedesktop.org/archives/dri-devel/2017-March/137429.html
- http://marc.info/?l=linux-kernel&m=149086968410117&w=2
- https://launchpad.net/bugs/cve/CVE-2017-7346
- http://seclists.org/oss-sec/2017/q1/696
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee9c4e681ec4f58e42a83cb0c22a0289ade1aacf
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1437432
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=1267497
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=1267497&action=edit
- https://access.redhat.com/support/policy/updates/errata/
- https://git.kernel.org/linus/ee9c4e681ec4f58e42a83cb0c22a0289ade1aacf
- https://security-tracker.debian.org/tracker/CVE-2017-7346
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7346
- https://nvd.nist.gov/vuln/detail/CVE-2017-7346
- https://ubuntu.com/security/CVE-2017-7346
Frequently Asked Questions
What is CVE-2017-7346?
CVE-2017-7346 is a vulnerability that allows local users to cause a denial of service (system hang) in the Linux kernel.
How severe is CVE-2017-7346?
CVE-2017-7346 has a low severity.
Which Linux kernel versions are affected by CVE-2017-7346?
Linux kernel versions through 4.10.7 are affected by CVE-2017-7346.
How can I fix the CVE-2017-7346 vulnerability?
To fix the CVE-2017-7346 vulnerability, update your Linux kernel to version 4.12 or higher.
Where can I find more information about CVE-2017-7346?
You can find more information about CVE-2017-7346 at the following references: [Link 1](https://bugzilla.redhat.com/show_bug.cgi?id=1437431), [Link 2](https://lists.freedesktop.org/archives/dri-devel/2017-March/137429.html), [Link 3](http://www.securityfocus.com/bid/97257).
- collector/nvd-index
- agent/type
- collector/launchpad-cve
- source/Launchpad
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2017-7346
- agent/author
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup
- agent/weakness
- agent/severity
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/references
- agent/remedy
- 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/4.10.7
- package-manager/debian