CVE-2015-7837
Red Hat Linux Kernel UEFI Secure Boot Bypass
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.
INFO
Published Date :
Sept. 19, 2017, 4:29 p.m.
Last Modified :
Nov. 21, 2024, 2:37 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
Affected Products
The following products are affected by CVE-2015-7837
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2015-7837.
| URL | Resource |
|---|---|
| http://rhn.redhat.com/errata/RHSA-2015-2152.html | Vendor Advisory |
| http://rhn.redhat.com/errata/RHSA-2015-2411.html | Vendor Advisory |
| http://www.openwall.com/lists/oss-security/2015/10/15/6 | Mailing List Third Party Advisory |
| http://www.securityfocus.com/bid/77097 | Third Party Advisory VDB Entry |
| https://bugzilla.redhat.com/show_bug.cgi?id=1272472 | Issue Tracking Vendor Advisory |
| https://github.com/mjg59/linux/commit/4b2b64d5a6ebc84214755ebccd599baef7c1b798 | Issue Tracking Third Party Advisory |
| http://rhn.redhat.com/errata/RHSA-2015-2152.html | Vendor Advisory |
| http://rhn.redhat.com/errata/RHSA-2015-2411.html | Vendor Advisory |
| http://www.openwall.com/lists/oss-security/2015/10/15/6 | Mailing List Third Party Advisory |
| http://www.securityfocus.com/bid/77097 | Third Party Advisory VDB Entry |
| https://bugzilla.redhat.com/show_bug.cgi?id=1272472 | Issue Tracking Vendor Advisory |
| https://github.com/mjg59/linux/commit/4b2b64d5a6ebc84214755ebccd599baef7c1b798 | Issue Tracking Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2015-7837 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2015-7837 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CPE Deprecation Remap by [email protected]
Jul. 15, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:redhat:enterprise_mrg:2.0:*:*:*:*:*:*:* OR *cpe:2.3:o:redhat:enterprise_mrg:2.0:*:*:*:*:*:*:* -
Initial Analysis by [email protected]
Oct. 05, 2017
Action Type Old Value New Value Added CVSS V2 (AV:L/AC:L/Au:N/C:N/I:P/A:N) Added CVSS V3 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N Changed Reference Type http://www.securityfocus.com/bid/77097 No Types Assigned http://www.securityfocus.com/bid/77097 Third Party Advisory, VDB Entry Changed Reference Type http://www.openwall.com/lists/oss-security/2015/10/15/6 No Types Assigned http://www.openwall.com/lists/oss-security/2015/10/15/6 Mailing List, Third Party Advisory Changed Reference Type http://rhn.redhat.com/errata/RHSA-2015-2152.html No Types Assigned http://rhn.redhat.com/errata/RHSA-2015-2152.html Vendor Advisory Changed Reference Type http://rhn.redhat.com/errata/RHSA-2015-2411.html No Types Assigned http://rhn.redhat.com/errata/RHSA-2015-2411.html Vendor Advisory Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1272472 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1272472 Issue Tracking, Vendor Advisory Changed Reference Type https://github.com/mjg59/linux/commit/4b2b64d5a6ebc84214755ebccd599baef7c1b798 No Types Assigned https://github.com/mjg59/linux/commit/4b2b64d5a6ebc84214755ebccd599baef7c1b798 Issue Tracking, Third Party Advisory Added CWE CWE-254 Added CPE Configuration OR *cpe:2.3:a:redhat:enterprise_mrg:2.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:7.2:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:7.3:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:kernel-rt:7.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Sep. 21, 2017
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/77097 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2015-7837 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2015-7837
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.05635
percentile