CVE-2015-7837

Description

The Linux kernel, as used in Red Hat Enterprise Linux 7, kernel-rt, and Enterprise MRG 2 and when booted with UEFI Secure Boot enabled, allows local users to bypass intended securelevel/secureboot restrictions by leveraging improper handling of secure_boot flag across kexec reboot.

Category

5.5
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.07%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/mjg59/linux/commit/4b2b64d5a6ebc84214755ebccd599baef7c1b798 third party advisory issue tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1272472 vendor advisory issue tracking
http://rhn.redhat.com/errata/RHSA-2015-2152.html vendor advisory
http://www.securityfocus.com/bid/77097 third party advisory vdb entry
http://www.openwall.com/lists/oss-security/2015/10/15/6 third party advisory mailing list
http://rhn.redhat.com/errata/RHSA-2015-2411.html vendor advisory

Frequently Asked Questions

What is the severity of CVE-2015-7837?
CVE-2015-7837 has been scored as a medium severity vulnerability.
How to fix CVE-2015-7837?
To fix CVE-2015-7837, 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-2015-7837 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2015-7837 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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