CVE-2016-9604

LOW

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 v2.0

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: 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) (BlueBorne) (Dirty COW) (Stack Clash)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) (BlueBorne) (Stack Clash)NessusOracle Linux Local Security Checks
high
105144Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3657) (BlueBorne) (Stack Clash)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) (Stack Clash)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
medium
102624Oracle Linux 6 : Unbreakable Enterprise kernel (ELSA-2017-3607)NessusOracle Linux Local Security Checks
medium
102623Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3606)NessusOracle Linux Local Security Checks
medium
102573OracleVM 3.4 : Unbreakable / etc (OVMSA-2017-0143)NessusOracleVM Local Security Checks
medium
102572Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3605)NessusOracle Linux Local Security Checks
medium
102511Oracle Linux 7 : kernel (ELSA-2017-1842-1) (Stack Clash)NessusOracle Linux Local Security Checks
critical
102281Oracle Linux 7 : kernel (ELSA-2017-1842) (Stack Clash)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
medium
99733Debian DLA-922-1 : linux security updateNessusDebian Local Security Checks
high