CVE-2017-12188: Buffer Overflow
First published: Tue Oct 10 2017(Updated: )
arch/x86/kvm/mmu.c in the Linux kernel through 4.13.5, when nested virtualisation is used, does not properly traverse guest pagetable entries to resolve a guest virtual address, which allows L1 guest OS users to execute arbitrary code on the host OS or cause a denial of service (incorrect index during page walking, and host OS crash), aka an "MMU potential stack buffer overrun."
Credit: secalert@redhat.com secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | <=4.13.5 | |
| Linux Linux kernel | >=4.6<4.9.57 | |
| Linux Linux kernel | >=4.10<4.13.8 | |
| 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://www.securityfocus.com/bid/101267
- https://access.redhat.com/errata/RHSA-2018:0395
- https://access.redhat.com/errata/RHSA-2018:0412
- https://bugzilla.redhat.com/show_bug.cgi?id=1500380
- https://patchwork.kernel.org/patch/9996579/
- https://patchwork.kernel.org/patch/9996587/
- https://launchpad.net/bugs/cve/CVE-2017-12188
- https://www.spinics.net/lists/kvm/msg156651.html
- http://www.openwall.com/lists/oss-security/2017/10/12/17
- https://security-tracker.debian.org/tracker/CVE-2017-12188
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12188
- https://nvd.nist.gov/vuln/detail/CVE-2017-12188
- https://ubuntu.com/security/CVE-2017-12188
Frequently Asked Questions
What is the vulnerability ID for this vulnerability?
The vulnerability ID for this vulnerability is CVE-2017-12188.
What is the severity of CVE-2017-12188?
CVE-2017-12188 has a severity rating of high.
How does CVE-2017-12188 impact the Linux kernel?
CVE-2017-12188 allows L1 guest OS users to execute arbitrary code on the host OS or cause a denial of service.
How can I fix CVE-2017-12188?
To fix CVE-2017-12188, update your Linux kernel to version 4.14.x or higher.
Where can I find more information about CVE-2017-12188?
You can find more information about CVE-2017-12188 at the following references: [1] [2] [3]
- collector/nvd-index
- agent/type
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2017-12188
- agent/weakness
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- agent/severity
- agent/author
- agent/references
- agent/remedy
- agent/tags
- collector/usn-cve
- source/Ubuntu
- agent/description
- collector/nvd-cve
- agent/last-modified-date
- agent/event
- collector/security-tracker-debian
- source/Debian
- agent/softwarecombine
- agent/trending
- vendor/linux
- canonical/linux linux kernel
- version/linux linux kernel/4.13.5
- version/linux linux kernel/4.6
- version/linux linux kernel/4.10
- package-manager/debian