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Vulnerability Details : CVE-2017-12192

The keyctl_read_key function in security/keys/keyctl.c in the Key Management subcomponent in the Linux kernel before 4.13.5 does not properly consider that a key may be possessed but negatively instantiated, which allows local users to cause a denial of service (OOPS and system crash) via a crafted KEYCTL_READ operation.
Publish Date : 2017-10-12 Last Update Date : 2018-03-16
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- CVSS Scores & Vulnerability Types

CVSS Score
4.9
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of Service
CWE ID 476

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2018:0151: kernel security and bug fix update (Important) oval:com.redhat.rhsa:def:20180151 unix
RHSA-2018:0152: kernel-rt security and bug fix update (Important) oval:com.redhat.rhsa:def:20180152 unix
RHSA-2018:0654: kernel-alt security, bug fix, and enhancement update (Important) oval:com.redhat.rhsa:def:20180654 unix
RHSA-2020:2430: kernel security and bug fix update (Moderate) oval:com.redhat.rhsa:def:20202430 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2017-12192

# Product Type Vendor Product Version Update Edition Language
1 OS Linux Linux Kernel * * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Linux Linux Kernel 1

- References For CVE-2017-12192

https://access.redhat.com/errata/RHSA-2018:0151
REDHAT RHSA-2018:0151
https://lkml.org/lkml/2017/9/18/764
https://bugzilla.redhat.com/show_bug.cgi?id=1493435 CONFIRM
https://github.com/torvalds/linux/commit/37863c43b2c6464f252862bf2e9768264e961678 CONFIRM
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5 CONFIRM
https://usn.ubuntu.com/3583-2/
UBUNTU USN-3583-2
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=37863c43b2c6464f252862bf2e9768264e961678 CONFIRM
https://usn.ubuntu.com/3583-1/
UBUNTU USN-3583-1

- Metasploit Modules Related To CVE-2017-12192

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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