CVE-2016-9756

medium
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

arch/x86/kvm/emulate.c in the Linux kernel before 4.8.12 does not properly initialize Code Segment (CS) in certain error cases, which allows local users to obtain sensitive information from kernel stack memory via a crafted application.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2117d5398c81554fbf803f5fd1dc55eb78216c0c

http://lists.opensuse.org/opensuse-security-announce/2017-01/msg00000.html

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.12

http://www.openwall.com/lists/oss-security/2016/12/01/1

http://www.securityfocus.com/bid/94615

https://bugzilla.redhat.com/show_bug.cgi?id=1400468

https://github.com/torvalds/linux/commit/2117d5398c81554fbf803f5fd1dc55eb78216c0c

Details

Source: MITRE

Published: 2016-12-28

Updated: 2017-01-07

Type: CWE-200

Risk Information

CVSS v2

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

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 4.8.11 (inclusive)

Tenable Plugins

View all (20 total)

IDNameProductFamilySeverity
137516EulerOS 2.0 SP2 : kernel (EulerOS-SA-2020-1674)NessusHuawei Local Security Checks
critical
124977EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1524)NessusHuawei Local Security Checks
high
99162OracleVM 3.4 : Unbreakable / etc (OVMSA-2017-0056)NessusOracleVM Local Security Checks
critical
99159Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3533)NessusOracle Linux Local Security Checks
critical
97297SUSE SLES11 Security Update : kernel (SUSE-SU-2017:0494-1)NessusSuSE Local Security Checks
critical
97205SUSE SLES12 Security Update : kernel (SUSE-SU-2017:0471-1)NessusSuSE Local Security Checks
high
97189SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2017:0464-1)NessusSuSE Local Security Checks
high
97097SUSE SLES11 Security Update : kernel (SUSE-SU-2017:0437-1)NessusSuSE Local Security Checks
critical
96903SUSE SLES11 Security Update : kernel (SUSE-SU-2017:0333-1)NessusSuSE Local Security Checks
critical
96443Ubuntu 16.10 : linux vulnerabilities (USN-3170-1)NessusUbuntu Local Security Checks
high
96440Ubuntu 14.04 LTS : linux-lts-xenial vulnerabilities (USN-3169-2)NessusUbuntu Local Security Checks
high
96439Ubuntu 16.04 LTS : linux vulnerabilities (USN-3169-1)NessusUbuntu Local Security Checks
high
96438Ubuntu 12.04 LTS : linux-lts-trusty vulnerabilities (USN-3168-2)NessusUbuntu Local Security Checks
high
96437Ubuntu 14.04 LTS : linux vulnerabilities (USN-3168-1)NessusUbuntu Local Security Checks
high
96436Ubuntu 12.04 LTS : linux vulnerabilities (USN-3167-1)NessusUbuntu Local Security Checks
high
96249openSUSE Security Update : the Linux Kernel (openSUSE-2017-1)NessusSuSE Local Security Checks
medium
96188Debian DLA-772-1 : linux security updateNessusDebian Local Security Checks
critical
95685Fedora 25 : kernel (2016-bbe98c341c)NessusFedora Local Security Checks
high
95680Fedora 23 : kernel (2016-9c17cb9648)NessusFedora Local Security Checks
high
95676Fedora 24 : kernel (2016-5ec2475e3f)NessusFedora Local Security Checks
high