CVE-2016-2143

Description

The fork implementation in the Linux kernel before 4.5 on s390 platforms mishandles the case of four page-table levels, which allows local users to cause a denial of service (system crash) or possibly have unspecified other impact via a crafted application, related to arch/s390/include/asm/mmu_context.h and arch/s390/include/asm/pgalloc.h.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.19%
Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory debian.org Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html third party advisory vendor advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3446c13b268af86391d06611327006b059b8bab1 patch vendor advisory
http://rhn.redhat.com/errata/RHSA-2016-2766.html third party advisory vendor advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html third party advisory
https://github.com/torvalds/linux/commit/3446c13b268af86391d06611327006b059b8bab1 patch
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00005.html third party advisory vendor advisory
https://security-tracker.debian.org/tracker/CVE-2016-2143 third party advisory
http://www.debian.org/security/2016/dsa-3607 third party advisory vendor advisory
http://rhn.redhat.com/errata/RHSA-2016-1539.html third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00059.html third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00019.html third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2016-2143?
CVE-2016-2143 has been scored as a high severity vulnerability.
How to fix CVE-2016-2143?
To fix CVE-2016-2143, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-2143 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-2143 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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