CVE-2019-6974MEDIUM
Description
In the Linux kernel before 4.20.8, kvm_ioctl_create_device in virt/kvm/kvm_main.c mishandles reference counting because of a race condition, leading to a use-after-free.
References
http://www.securityfocus.com/bid/107127
https://access.redhat.com/errata/RHBA-2019:0959
https://access.redhat.com/errata/RHSA-2019:0818
https://access.redhat.com/errata/RHSA-2019:0833
https://access.redhat.com/errata/RHSA-2019:2809
https://access.redhat.com/errata/RHSA-2019:3967
https://access.redhat.com/errata/RHSA-2020:0103
https://bugs.chromium.org/p/project-zero/issues/detail?id=1765
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.99
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.21
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.8
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.156
https://github.com/torvalds/linux/commit/cfa39381173d5f969daf43582c95ad679189cbc9
https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html
https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html
https://lists.debian.org/debian-lts-announce/2019/05/msg00002.html
https://support.f5.com/csp/article/K11186236
https://support.f5.com/csp/article/K11186236?utm_source=f5support&utm_medium=RSS
https://usn.ubuntu.com/3930-1/
https://usn.ubuntu.com/3930-2/
https://usn.ubuntu.com/3931-1/
https://usn.ubuntu.com/3931-2/
https://usn.ubuntu.com/3932-1/
https://usn.ubuntu.com/3932-2/
https://usn.ubuntu.com/3933-1/
Details
Source: MITRE
Published: 2019-02-15
Updated: 2020-10-15
Type: CWE-362
Risk Information
CVSS v2.0
Base Score: 6.8
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 8.6
Severity: MEDIUM
CVSS v3.0
Base Score: 8.1
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 2.2
Severity: HIGH
Vulnerable Software
Configuration 1
OR
Configuration 2
OR
Configuration 3
OR
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
Configuration 4
OR
cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* versions from 13.0.0 to 13.1.1 (inclusive)
cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* versions from 14.0.0 to 14.1.0 (inclusive)
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* versions from 13.0.0 to 13.1.1 (inclusive)
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* versions from 14.0.0 to 14.1.0 (inclusive)
cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* versions from 13.0.0 to 13.1.1 (inclusive)
cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* versions from 14.0.0 to 14.1.0 (inclusive)
cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* versions from 13.0.0 to 13.1.1 (inclusive)
cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* versions from 14.0.0 to 14.1.0 (inclusive)
cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* versions from 13.0.0 to 13.1.1 (inclusive)
cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* versions from 14.0.0 to 14.1.0 (inclusive)
cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:* versions from 13.0.0 to 13.1.1 (inclusive)
cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:* versions from 14.0.0 to 14.1.0 (inclusive)
cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* versions from 13.0.0 to 13.1.1 (inclusive)
cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* versions from 14.0.0 to 14.1.0 (inclusive)
cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* versions from 13.0.0 to 13.1.1 (inclusive)
cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* versions from 14.0.0 to 14.1.0 (inclusive)
cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* versions from 13.0.0 to 13.1.1 (inclusive)
cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* versions from 14.0.0 to 14.1.0 (inclusive)
cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* versions from 13.0.0 to 13.1.1 (inclusive)
cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* versions from 14.0.0 to 14.1.0 (inclusive)
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* versions from 13.0.0 to 13.1.1 (inclusive)
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* versions from 14.0.0 to 14.1.0 (inclusive)
cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:* versions from 13.0.0 to 13.1.1 (inclusive)
cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:* versions from 14.0.0 to 14.1.0 (inclusive)
Configuration 5
OR
cpe:2.3:a:redhat:openshift_container_platform:3.11:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
Tenable Plugins
| ID | Name | Product | Family | Severity |
|---|---|---|---|---|
| 141374 | OracleVM 3.4 : Unbreakable / etc (OVMSA-2020-0044) | Nessus | OracleVM Local Security Checks | critical |
| 141207 | Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2020-5866) | Nessus | Oracle Linux Local Security Checks | critical |
| 133455 | Virtuozzo 7 : readykernel-patch (VZA-2019-046) | Nessus | Virtuozzo Local Security Checks | medium |
| 133454 | Virtuozzo 7 : readykernel-patch (VZA-2019-045) | Nessus | Virtuozzo Local Security Checks | medium |
| 133453 | Virtuozzo 7 : readykernel-patch (VZA-2019-042) | Nessus | Virtuozzo Local Security Checks | medium |
| 132886 | RHEL 7 : kernel (RHSA-2020:0103) | Nessus | Red Hat Local Security Checks | medium |
| 132554 | F5 Networks BIG-IP : Linux kernel KVM subsystem vulnerability (K11186236) | Nessus | F5 Networks Local Security Checks | medium |
| 131375 | RHEL 7 : kernel (RHSA-2019:3967) | Nessus | Red Hat Local Security Checks | high |
| 129145 | RHEL 7 : kernel-alt (RHSA-2019:2809) | Nessus | Red Hat Local Security Checks | high |
| 127302 | NewStart CGSL CORE 5.05 / MAIN 5.05 : kernel-rt Multiple Vulnerabilities (NS-SA-2019-0086) | Nessus | NewStart CGSL Local Security Checks | medium |
| 127301 | NewStart CGSL CORE 5.05 / MAIN 5.05 : kernel Multiple Vulnerabilities (NS-SA-2019-0085) | Nessus | NewStart CGSL Local Security Checks | medium |
| 127285 | NewStart CGSL CORE 5.04 / MAIN 5.04 : kernel Multiple Vulnerabilities (NS-SA-2019-0077) | Nessus | NewStart CGSL Local Security Checks | high |
| 127283 | NewStart CGSL CORE 5.04 / MAIN 5.04 : kernel-rt Multiple Vulnerabilities (NS-SA-2019-0076) | Nessus | NewStart CGSL Local Security Checks | high |
| 126031 | Slackware 14.2 / current : kernel (SSA:2019-169-01) (SACK Panic) (SACK Slowness) | Nessus | Slackware Local Security Checks | high |
| 125283 | SUSE SLES12 Security Update : kernel (SUSE-SU-2019:1289-1) (MDSUM/RIDL) (MFBDS/RIDL/ZombieLoad) (MLPDS/RIDL) (MSBDS/Fallout) | Nessus | SuSE Local Security Checks | high |
| 124984 | EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1531) | Nessus | Huawei Local Security Checks | high |
| 124953 | EulerOS Virtualization 3.0.1.0 : kvm (EulerOS-SA-2019-1450) | Nessus | Huawei Local Security Checks | medium |
| 124750 | EulerOS Virtualization 2.5.4 : kvm (EulerOS-SA-2019-1372) | Nessus | Huawei Local Security Checks | medium |
| 124595 | Debian DLA-1771-1 : linux-4.9 security update | Nessus | Debian Local Security Checks | high |
| 124416 | CentOS 7 : kernel (CESA-2019:0818) | Nessus | CentOS Local Security Checks | medium |
| 124290 | Scientific Linux Security Update : kernel on SL7.x x86_64 (20190423) | Nessus | Scientific Linux Local Security Checks | medium |
| 124259 | RHEL 7 : kernel-rt (RHSA-2019:0833) | Nessus | Red Hat Local Security Checks | medium |
| 124256 | RHEL 7 : kernel (RHSA-2019:0818) | Nessus | Red Hat Local Security Checks | medium |
| 124254 | Oracle Linux 7 : kernel (ELSA-2019-0818) | Nessus | Oracle Linux Local Security Checks | medium |
| 124048 | Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2019-4612) | Nessus | Oracle Linux Local Security Checks | high |
| 123927 | SUSE SLES12 Security Update : kernel (SUSE-SU-2019:0901-1) | Nessus | SuSE Local Security Checks | high |
| 123723 | EulerOS Virtualization 2.5.3 : kvm (EulerOS-SA-2019-1255) | Nessus | Huawei Local Security Checks | medium |
| 123682 | Ubuntu 14.04 LTS : linux vulnerabilities (USN-3933-1) | Nessus | Ubuntu Local Security Checks | medium |
| 123681 | Ubuntu 14.04 LTS : linux-lts-xenial, linux-aws vulnerabilities (USN-3932-2) | Nessus | Ubuntu Local Security Checks | high |
| 123680 | Ubuntu 16.04 LTS : linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities (USN-3932-1) | Nessus | Ubuntu Local Security Checks | high |
| 123679 | Ubuntu 14.04 LTS / 16.04 LTS : linux-hwe, linux-aws-hwe, linux-azure, linux-gcp, linux-oracle (USN-3931-2) | Nessus | Ubuntu Local Security Checks | high |
| 123678 | Ubuntu 18.04 LTS : linux, linux-aws, linux-gcp, linux-kvm, linux-oem, linux-oracle, (USN-3931-1) | Nessus | Ubuntu Local Security Checks | high |
| 123677 | Ubuntu 18.04 LTS : linux-hwe, linux-azure vulnerabilities (USN-3930-2) | Nessus | Ubuntu Local Security Checks | high |
| 123676 | Ubuntu 18.10 : linux, linux-aws, linux-azure, linux-gcp, linux-kvm, linux-raspi2 (USN-3930-1) | Nessus | Ubuntu Local Security Checks | high |
| 123635 | SUSE SLES12 Security Update : kernel (SUSE-SU-2019:0828-1) | Nessus | SuSE Local Security Checks | high |
| 123496 | SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2019:0784-1) | Nessus | SuSE Local Security Checks | high |
| 123445 | SUSE SLES12 Security Update : kernel (SUSE-SU-2019:0767-1) | Nessus | SuSE Local Security Checks | high |
| 123420 | Debian DLA-1731-2 : linux regression update (Spectre) | Nessus | Debian Local Security Checks | high |
| 123413 | SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2019:0765-1) (Spectre) | Nessus | SuSE Local Security Checks | high |
| 123125 | SUSE SLES12 Security Update : kernel (SUSE-SU-2019:0722-1) | Nessus | SuSE Local Security Checks | medium |
| 123066 | SUSE SLES12 Security Update : kernel (SUSE-SU-2019:0709-1) | Nessus | SuSE Local Security Checks | medium |
| 123061 | SUSE SLES12 Security Update : kernel (SUSE-SU-2019:0683-1) | Nessus | SuSE Local Security Checks | medium |
| 123000 | SUSE SLES12 Security Update : kernel (SUSE-SU-2019:0672-1) | Nessus | SuSE Local Security Checks | medium |
| 122699 | EulerOS 2.0 SP5 : kernel (EulerOS-SA-2019-1076) | Nessus | Huawei Local Security Checks | medium |
| 122671 | Amazon Linux 2 : kernel (ALAS-2019-1165) | Nessus | Amazon Linux Local Security Checks | medium |
| 122609 | SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2019:0541-1) | Nessus | SuSE Local Security Checks | high |
| 122602 | Amazon Linux AMI : kernel (ALAS-2019-1165) | Nessus | Amazon Linux Local Security Checks | medium |
| 122303 | openSUSE Security Update : the Linux Kernel (openSUSE-2019-203) | Nessus | SuSE Local Security Checks | high |
| 122278 | Fedora 28 : kernel / kernel-headers / kernel-tools (2019-3da64f3e61) | Nessus | Fedora Local Security Checks | medium |
| 122275 | Fedora 29 : kernel / kernel-headers / kernel-tools (2019-164946aa7f) | Nessus | Fedora Local Security Checks | medium |