CVE-2016-9178

LOW

Description

The __get_user_asm_ex macro in arch/x86/include/asm/uaccess.h in the Linux kernel before 4.7.5 does not initialize a certain integer variable, which allows local users to obtain sensitive information from kernel stack memory by triggering failure of a get_user_ex call.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1c109fabbd51863475cd12ac206bdd249aee35af

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.7.5

http://www.openwall.com/lists/oss-security/2016/11/04/4

http://www.securityfocus.com/bid/94144

https://bugzilla.redhat.com/show_bug.cgi?id=1391908

https://github.com/torvalds/linux/commit/1c109fabbd51863475cd12ac206bdd249aee35af

Details

Source: MITRE

Published: 2016-11-28

Updated: 2016-11-28

Type: CWE-200

Risk Information

CVSS v2.0

Base Score: 2.1

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

Impact Score: 3.6

Exploitability Score: 1.8

Severity: MEDIUM

Vulnerable Software

Configuration 1

OR

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to 4.7.4 (inclusive)

Tenable Plugins

View all (9 total)

IDNameProductFamilySeverity
124989EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1536)NessusHuawei Local Security Checks
high
103326Ubuntu 14.04 LTS : linux vulnerabilities (USN-3422-1) (BlueBorne)NessusUbuntu Local Security Checks
high
99163OracleVM 3.3 : Unbreakable / etc (OVMSA-2017-0057) (Dirty COW)NessusOracleVM Local Security Checks
critical
99162OracleVM 3.4 : Unbreakable / etc (OVMSA-2017-0056)NessusOracleVM Local Security Checks
high
99160Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3534)NessusOracle Linux Local Security Checks
high
99159Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3533)NessusOracle Linux Local Security Checks
high
96188Debian DLA-772-1 : linux security updateNessusDebian Local Security Checks
critical
95997Ubuntu 16.04 LTS : linux-raspi2 vulnerabilities (USN-3161-3)NessusUbuntu Local Security Checks
critical
95702openSUSE Security Update : the Linux Kernel (openSUSE-2016-1428)NessusSuSE Local Security Checks
critical