CVE-2015-7837

LOW

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.

References

http://rhn.redhat.com/errata/RHSA-2015-2152.html

http://rhn.redhat.com/errata/RHSA-2015-2411.html

http://www.openwall.com/lists/oss-security/2015/10/15/6

http://www.securityfocus.com/bid/77097

https://bugzilla.redhat.com/show_bug.cgi?id=1272472

https://github.com/mjg59/linux/commit/4b2b64d5a6ebc84214755ebccd599baef7c1b798

Details

Source: MITRE

Published: 2017-09-19

Updated: 2017-10-05

Type: CWE-254

Risk Information

CVSS v2.0

Base Score: 2.1

Vector: AV:L/AC:L/Au:N/C:N/I:P/A:N

Impact Score: 2.9

Exploitability Score: 3.9

Severity: LOW

CVSS v3.0

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Impact Score: 3.6

Exploitability Score: 1.8

Severity: MEDIUM

Tenable Plugins

View all (13 total)

IDNameProductFamilySeverity
147512EulerOS : kernel (EulerOS-SA-2021-1604)NessusHuawei Local Security Checks
high
144731EulerOS Virtualization for ARM 64 3.0.2.0 : kernel (EulerOS-SA-2021-1039)NessusHuawei Local Security Checks
high
142148EulerOS 2.0 SP8 : kernel (EulerOS-SA-2020-2311)NessusHuawei Local Security Checks
high
120977Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2019-4316)NessusOracle Linux Local Security Checks
high
102819Ubuntu 14.04 LTS : linux-lts-xenial vulnerabilities (USN-3405-2)NessusUbuntu Local Security Checks
high
102818Ubuntu 16.04 LTS : linux, linux-aws, linux-gke, linux-raspi2, linux-snapdragon vulnerabilities (USN-3405-1)NessusUbuntu Local Security Checks
high
93679OracleVM 3.4 : Unbreakable / etc (OVMSA-2016-0100)NessusOracleVM Local Security Checks
critical
93148Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2016-3596)NessusOracle Linux Local Security Checks
critical
88571RHEL 7 : kernel-rt (RHSA-2015:2411)NessusRed Hat Local Security Checks
medium
87559Scientific Linux Security Update : kernel on SL7.x x86_64 (20151119)NessusScientific Linux Local Security Checks
medium
87135CentOS 7 : kernel (CESA-2015:2152)NessusCentOS Local Security Checks
high
87090Oracle Linux 7 : kernel (ELSA-2015-2152)NessusOracle Linux Local Security Checks
high
86972RHEL 7 : kernel (RHSA-2015:2152)NessusRed Hat Local Security Checks
high