CVE-2016-9604

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

It was discovered in the Linux kernel before 4.11-rc8 that root can gain direct access to an internal keyring, such as '.dns_resolver' in RHEL-7 or '.builtin_trusted_keys' upstream, by joining it as its session keyring. This allows root to bypass module signature verification by adding a new public key of its own devising to the keyring.

References

http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-9604.html

http://www.securityfocus.com/bid/102135

https://access.redhat.com/errata/RHSA-2017:1842

https://access.redhat.com/errata/RHSA-2017:2077

https://access.redhat.com/errata/RHSA-2017:2669

https://bugzilla.novell.com/show_bug.cgi?id=1035576

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9604

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee8f844e3c5a73b999edf733df1c529d6503ec2f

Details

Source: MITRE

Published: 2018-07-11

Updated: 2019-10-09

Type: CWE-347

Risk Information

CVSS v2

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

Base Score: 4.4

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

Impact Score: 3.6

Exploitability Score: 0.8

Severity: MEDIUM

Tenable Plugins

View all (33 total)

IDNameProductFamilySeverity
124975EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1522)NessusHuawei Local Security Checks
high
124819EulerOS Virtualization 3.0.1.0 : kernel (EulerOS-SA-2019-1496)NessusHuawei Local Security Checks
critical
106469OracleVM 3.4 : Unbreakable / etc (OVMSA-2018-0015) (BlueBorne) (Meltdown) (Spectre) (Stack Clash)NessusOracleVM Local Security Checks
critical
105248OracleVM 3.4 : Unbreakable / etc (OVMSA-2017-0174) (BlueBorne) (Dirty COW) (Stack Clash)NessusOracleVM Local Security Checks
high
105247Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3659)NessusOracle Linux Local Security Checks
high
105147OracleVM 3.3 : Unbreakable / etc (OVMSA-2017-0173) (BlueBorne) (Stack Clash)NessusOracleVM Local Security Checks
high
105145Oracle Linux 6 : Unbreakable Enterprise kernel (ELSA-2017-3658)NessusOracle Linux Local Security Checks
high
105144Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3657)NessusOracle Linux Local Security Checks
high
104374SUSE SLES12 Security Update : kernel (SUSE-SU-2017:2920-1) (KRACK) (Stack Clash)NessusSuSE Local Security Checks
critical
103326Ubuntu 14.04 LTS : linux vulnerabilities (USN-3422-1) (BlueBorne)NessusUbuntu Local Security Checks
high
103046RHEL 6 : MRG (RHSA-2017:2669)NessusRed Hat Local Security Checks
high
102997EulerOS 2.0 SP1 : kernel (EulerOS-SA-2017-1159)NessusHuawei Local Security Checks
critical
102774OracleVM 3.4 : Unbreakable / etc (OVMSA-2017-0145) (Stack Clash)NessusOracleVM Local Security Checks
critical
102773Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3609)NessusOracle Linux Local Security Checks
critical
102734CentOS 7 : kernel (CESA-2017:1842) (Stack Clash)NessusCentOS Local Security Checks
high
102645Scientific Linux Security Update : kernel on SL7.x x86_64 (20170801)NessusScientific Linux Local Security Checks
high
102625OracleVM 3.3 : Unbreakable / etc (OVMSA-2017-0144)NessusOracleVM Local Security Checks
high
102624Oracle Linux 6 : Unbreakable Enterprise kernel (ELSA-2017-3607)NessusOracle Linux Local Security Checks
high
102623Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3606)NessusOracle Linux Local Security Checks
high
102573OracleVM 3.4 : Unbreakable / etc (OVMSA-2017-0143)NessusOracleVM Local Security Checks
high
102572Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3605)NessusOracle Linux Local Security Checks
high
102511Oracle Linux 7 : kernel (ELSA-2017-1842-1) (Stack Clash)NessusOracle Linux Local Security Checks
critical
102281Oracle Linux 7 : kernel (ELSA-2017-1842)NessusOracle Linux Local Security Checks
high
102151RHEL 7 : kernel-rt (RHSA-2017:2077)NessusRed Hat Local Security Checks
high
102143RHEL 7 : kernel (RHSA-2017:1842) (Stack Clash)NessusRed Hat Local Security Checks
high
101929Ubuntu 16.04 LTS : linux-hwe vulnerabilities (USN-3361-1)NessusUbuntu Local Security Checks
critical
100668Ubuntu 17.04 : linux, linux-raspi2 vulnerabilities (USN-3314-1)NessusUbuntu Local Security Checks
critical
100665Ubuntu 14.04 LTS : linux-lts-xenial vulnerabilities (USN-3312-2)NessusUbuntu Local Security Checks
critical
100664Ubuntu 16.04 LTS : linux, linux-aws, linux-gke, linux-raspi2, linux-snapdragon vulnerabilities (USN-3312-1)NessusUbuntu Local Security Checks
critical
100320SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2017:1360-1)NessusSuSE Local Security Checks
critical
99987Fedora 24 : kernel (2017-0aa0f69e0c)NessusFedora Local Security Checks
high
99923Fedora 25 : kernel (2017-17d1c05236)NessusFedora Local Security Checks
high
99733Debian DLA-922-1 : linux security updateNessusDebian Local Security Checks
high