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CVE-2015-7837

Date: September 19, 2017

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.

Language: C

Severity Score

Related Resources (10)

https://people.canonical.com/~ubuntu-security/cve/CVE-2015-7837
http://www.securityfocus.com/bid/77097
https://github.com/mjg59/linux/commit/4b2b64d5a6ebc84214755ebccd599baef7c1b798
http://rhn.redhat.com/errata/RHSA-2015-2152.html
http://www.openwall.com/lists/oss-security/2015/10/15/6
http://rhn.redhat.com/errata/RHSA-2015-2411.html
https://nvd.nist.gov/vuln/detail/CVE-2015-7837
https://access.redhat.com/security/cve/CVE-2015-7837
https://bugzilla.redhat.com/show_bug.cgi?id=1272472
https://www.mend.io/vulnerability-database/CVE-2015-7837

Severity Score

Weakness Type (CWE)

Security Features

CWE-254

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): HIGH
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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