# CVE-2019-20908: kernel-core: The kernel packages contain the Linux kernel, the core of any Linux operating system.  Security Fix(es):  * kernel: l...

CVE-2019-20908 is fixed in 37 products on 1 platform, first by RHSA-2020:3218, released July 29, 2020. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2019-20908
- Priority: Routine
- CVSS: 6.7 (Moderate)
- EPSS: 0.0054
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 29, 2020

## Description

The kernel packages contain the Linux kernel, the core of any Linux operating system.  Security Fix(es):  * kernel: lockdown: bypass through ACPI write via efivar_ssdt (CVE-2019-20908)  * kernel: lockdown: bypass through ACPI write via acpi_configfs (CVE-2020-15780)  For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.  Bug Fix(es):  * kernel: provide infrastructure to support dual-signing of the kernel (foundation to help address CVE-2020-10713) (BZ#1837433)  * [Regression] RHEL8.2 RC  - [Boston/DD2.1] [RHEL8.2/kernel-4.18.0-193.el8.ppc64le] Host kernel crashes while running storage test bucket on KVM guest (iscsi) (BZ#1852048)  * RHEL8.2 - s390/mm: fix panic in gup_fast on large pud (BZ#1853336)

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | bpftool RHEL 8 | 0:4.18.0-193.14.3.el8_2 | [RHSA-2020:3218](https://patchblox.com/security/data/fix/linux/rhsa-2020-3218.md) | Jul 29, 2020 |
| Linux | bpftool ol 8 | 0:4.18.0-193.14.3.el8_2 | [ELSA-2020-3218](https://patchblox.com/security/data/fix/linux/elsa-2020-3218.md) | Jul 30, 2020 |
| Linux | kernel RHEL 8 | 0:4.18.0-193.14.3.el8_2 | [RHSA-2020:3218](https://patchblox.com/security/data/fix/linux/rhsa-2020-3218.md) | Jul 29, 2020 |
| Linux | kernel ol 8 | 0:4.18.0-193.14.3.el8_2 | [ELSA-2020-3218](https://patchblox.com/security/data/fix/linux/elsa-2020-3218.md) | Jul 30, 2020 |
| Linux | kernel-abi-whitelists RHEL 8 | 0:4.18.0-193.14.3.el8_2 | [RHSA-2020:3218](https://patchblox.com/security/data/fix/linux/rhsa-2020-3218.md) | Jul 29, 2020 |
| Linux | kernel-abi-whitelists ol 8 | 0:4.18.0-193.14.3.el8_2 | [ELSA-2020-3218](https://patchblox.com/security/data/fix/linux/elsa-2020-3218.md) | Jul 30, 2020 |
| Linux | kernel-core RHEL 8 | 0:4.18.0-193.14.3.el8_2 | [RHSA-2020:3218](https://patchblox.com/security/data/fix/linux/rhsa-2020-3218.md) | Jul 29, 2020 |
| Linux | kernel-core ol 8 | 0:4.18.0-193.14.3.el8_2 | [ELSA-2020-3218](https://patchblox.com/security/data/fix/linux/elsa-2020-3218.md) | Jul 30, 2020 |
| Linux | kernel-cross-headers RHEL 8 | 0:4.18.0-193.14.3.el8_2 | [RHSA-2020:3218](https://patchblox.com/security/data/fix/linux/rhsa-2020-3218.md) | Jul 29, 2020 |
| Linux | kernel-cross-headers ol 8 | 0:4.18.0-193.14.3.el8_2 | [ELSA-2020-3218](https://patchblox.com/security/data/fix/linux/elsa-2020-3218.md) | Jul 30, 2020 |
| Linux | kernel-debug RHEL 8 | 0:4.18.0-193.14.3.el8_2 | [RHSA-2020:3218](https://patchblox.com/security/data/fix/linux/rhsa-2020-3218.md) | Jul 29, 2020 |
| Linux | kernel-debug ol 8 | 0:4.18.0-193.14.3.el8_2 | [ELSA-2020-3218](https://patchblox.com/security/data/fix/linux/elsa-2020-3218.md) | Jul 30, 2020 |
| Linux | kernel-debug-core RHEL 8 | 0:4.18.0-193.14.3.el8_2 | [RHSA-2020:3218](https://patchblox.com/security/data/fix/linux/rhsa-2020-3218.md) | Jul 29, 2020 |
| Linux | kernel-debug-core ol 8 | 0:4.18.0-193.14.3.el8_2 | [ELSA-2020-3218](https://patchblox.com/security/data/fix/linux/elsa-2020-3218.md) | Jul 30, 2020 |
| Linux | kernel-debug-devel RHEL 8 | 0:4.18.0-193.14.3.el8_2 | [RHSA-2020:3218](https://patchblox.com/security/data/fix/linux/rhsa-2020-3218.md) | Jul 29, 2020 |
| Linux | kernel-debug-devel ol 8 | 0:4.18.0-193.14.3.el8_2 | [ELSA-2020-3218](https://patchblox.com/security/data/fix/linux/elsa-2020-3218.md) | Jul 30, 2020 |
| Linux | kernel-debug-modules RHEL 8 | 0:4.18.0-193.14.3.el8_2 | [RHSA-2020:3218](https://patchblox.com/security/data/fix/linux/rhsa-2020-3218.md) | Jul 29, 2020 |
| Linux | kernel-debug-modules ol 8 | 0:4.18.0-193.14.3.el8_2 | [ELSA-2020-3218](https://patchblox.com/security/data/fix/linux/elsa-2020-3218.md) | Jul 30, 2020 |
| Linux | kernel-debug-modules-extra RHEL 8 | 0:4.18.0-193.14.3.el8_2 | [RHSA-2020:3218](https://patchblox.com/security/data/fix/linux/rhsa-2020-3218.md) | Jul 29, 2020 |
| Linux | kernel-debug-modules-extra ol 8 | 0:4.18.0-193.14.3.el8_2 | [ELSA-2020-3218](https://patchblox.com/security/data/fix/linux/elsa-2020-3218.md) | Jul 30, 2020 |
| Linux | kernel-devel RHEL 8 | 0:4.18.0-193.14.3.el8_2 | [RHSA-2020:3218](https://patchblox.com/security/data/fix/linux/rhsa-2020-3218.md) | Jul 29, 2020 |
| Linux | kernel-devel ol 8 | 0:4.18.0-193.14.3.el8_2 | [ELSA-2020-3218](https://patchblox.com/security/data/fix/linux/elsa-2020-3218.md) | Jul 30, 2020 |
| Linux | kernel-doc RHEL 8 | 0:4.18.0-193.14.3.el8_2 | [RHSA-2020:3218](https://patchblox.com/security/data/fix/linux/rhsa-2020-3218.md) | Jul 29, 2020 |
| Linux | kernel-doc ol 8 | 0:4.18.0-193.14.3.el8_2 | [ELSA-2020-3218](https://patchblox.com/security/data/fix/linux/elsa-2020-3218.md) | Jul 30, 2020 |
| Linux | kernel-headers RHEL 8 | 0:4.18.0-193.14.3.el8_2 | [RHSA-2020:3218](https://patchblox.com/security/data/fix/linux/rhsa-2020-3218.md) | Jul 29, 2020 |
| Linux | kernel-headers ol 8 | 0:4.18.0-193.14.3.el8_2 | [ELSA-2020-3218](https://patchblox.com/security/data/fix/linux/elsa-2020-3218.md) | Jul 30, 2020 |
| Linux | kernel-modules RHEL 8 | 0:4.18.0-193.14.3.el8_2 | [RHSA-2020:3218](https://patchblox.com/security/data/fix/linux/rhsa-2020-3218.md) | Jul 29, 2020 |
| Linux | kernel-modules ol 8 | 0:4.18.0-193.14.3.el8_2 | [ELSA-2020-3218](https://patchblox.com/security/data/fix/linux/elsa-2020-3218.md) | Jul 30, 2020 |
| Linux | kernel-modules-extra RHEL 8 | 0:4.18.0-193.14.3.el8_2 | [RHSA-2020:3218](https://patchblox.com/security/data/fix/linux/rhsa-2020-3218.md) | Jul 29, 2020 |
| Linux | kernel-modules-extra ol 8 | 0:4.18.0-193.14.3.el8_2 | [ELSA-2020-3218](https://patchblox.com/security/data/fix/linux/elsa-2020-3218.md) | Jul 30, 2020 |
| Linux | kernel-rt RHEL 8 | 0:4.18.0-193.14.3.rt13.67.el8_2 | [RHSA-2020:3219](https://patchblox.com/security/data/fix/linux/rhsa-2020-3219.md) | Jul 29, 2020 |
| Linux | kernel-rt-core RHEL 8 | 0:4.18.0-193.14.3.rt13.67.el8_2 | [RHSA-2020:3219](https://patchblox.com/security/data/fix/linux/rhsa-2020-3219.md) | Jul 29, 2020 |
| Linux | kernel-rt-debug RHEL 8 | 0:4.18.0-193.14.3.rt13.67.el8_2 | [RHSA-2020:3219](https://patchblox.com/security/data/fix/linux/rhsa-2020-3219.md) | Jul 29, 2020 |
| Linux | kernel-rt-debug-core RHEL 8 | 0:4.18.0-193.14.3.rt13.67.el8_2 | [RHSA-2020:3219](https://patchblox.com/security/data/fix/linux/rhsa-2020-3219.md) | Jul 29, 2020 |
| Linux | kernel-rt-debug-devel RHEL 8 | 0:4.18.0-193.14.3.rt13.67.el8_2 | [RHSA-2020:3219](https://patchblox.com/security/data/fix/linux/rhsa-2020-3219.md) | Jul 29, 2020 |
| Linux | kernel-rt-debug-kvm RHEL 8 | 0:4.18.0-193.14.3.rt13.67.el8_2 | [RHSA-2020:3219](https://patchblox.com/security/data/fix/linux/rhsa-2020-3219.md) | Jul 29, 2020 |
| Linux | kernel-rt-debug-modules RHEL 8 | 0:4.18.0-193.14.3.rt13.67.el8_2 | [RHSA-2020:3219](https://patchblox.com/security/data/fix/linux/rhsa-2020-3219.md) | Jul 29, 2020 |
| Linux | kernel-rt-debug-modules-extra RHEL 8 | 0:4.18.0-193.14.3.rt13.67.el8_2 | [RHSA-2020:3219](https://patchblox.com/security/data/fix/linux/rhsa-2020-3219.md) | Jul 29, 2020 |
| Linux | kernel-rt-devel RHEL 8 | 0:4.18.0-193.14.3.rt13.67.el8_2 | [RHSA-2020:3219](https://patchblox.com/security/data/fix/linux/rhsa-2020-3219.md) | Jul 29, 2020 |
| Linux | kernel-rt-kvm RHEL 8 | 0:4.18.0-193.14.3.rt13.67.el8_2 | [RHSA-2020:3219](https://patchblox.com/security/data/fix/linux/rhsa-2020-3219.md) | Jul 29, 2020 |
| Linux | kernel-rt-modules RHEL 8 | 0:4.18.0-193.14.3.rt13.67.el8_2 | [RHSA-2020:3219](https://patchblox.com/security/data/fix/linux/rhsa-2020-3219.md) | Jul 29, 2020 |
| Linux | kernel-rt-modules-extra RHEL 8 | 0:4.18.0-193.14.3.rt13.67.el8_2 | [RHSA-2020:3219](https://patchblox.com/security/data/fix/linux/rhsa-2020-3219.md) | Jul 29, 2020 |
| Linux | kernel-tools RHEL 8 | 0:4.18.0-193.14.3.el8_2 | [RHSA-2020:3218](https://patchblox.com/security/data/fix/linux/rhsa-2020-3218.md) | Jul 29, 2020 |
| Linux | kernel-tools ol 8 | 0:4.18.0-193.14.3.el8_2 | [ELSA-2020-3218](https://patchblox.com/security/data/fix/linux/elsa-2020-3218.md) | Jul 30, 2020 |
| Linux | kernel-tools-libs RHEL 8 | 0:4.18.0-193.14.3.el8_2 | [RHSA-2020:3218](https://patchblox.com/security/data/fix/linux/rhsa-2020-3218.md) | Jul 29, 2020 |
| Linux | kernel-tools-libs ol 8 | 0:4.18.0-193.14.3.el8_2 | [ELSA-2020-3218](https://patchblox.com/security/data/fix/linux/elsa-2020-3218.md) | Jul 30, 2020 |
| Linux | kernel-tools-libs-devel RHEL 8 | 0:4.18.0-193.14.3.el8_2 | [RHSA-2020:3218](https://patchblox.com/security/data/fix/linux/rhsa-2020-3218.md) | Jul 29, 2020 |
| Linux | kernel-tools-libs-devel ol 8 | 0:4.18.0-193.14.3.el8_2 | [ELSA-2020-3218](https://patchblox.com/security/data/fix/linux/elsa-2020-3218.md) | Jul 30, 2020 |
| Linux | kernel-zfcpdump RHEL 8 | 0:4.18.0-193.14.3.el8_2 | [RHSA-2020:3218](https://patchblox.com/security/data/fix/linux/rhsa-2020-3218.md) | Jul 29, 2020 |
| Linux | kernel-zfcpdump-core RHEL 8 | 0:4.18.0-193.14.3.el8_2 | [RHSA-2020:3218](https://patchblox.com/security/data/fix/linux/rhsa-2020-3218.md) | Jul 29, 2020 |
| Linux | kernel-zfcpdump-devel RHEL 8 | 0:4.18.0-193.14.3.el8_2 | [RHSA-2020:3218](https://patchblox.com/security/data/fix/linux/rhsa-2020-3218.md) | Jul 29, 2020 |
| Linux | kernel-zfcpdump-modules RHEL 8 | 0:4.18.0-193.14.3.el8_2 | [RHSA-2020:3218](https://patchblox.com/security/data/fix/linux/rhsa-2020-3218.md) | Jul 29, 2020 |
| Linux | kernel-zfcpdump-modules-extra RHEL 8 | 0:4.18.0-193.14.3.el8_2 | [RHSA-2020:3218](https://patchblox.com/security/data/fix/linux/rhsa-2020-3218.md) | Jul 29, 2020 |
| Linux | perf RHEL 8 | 0:4.18.0-193.14.3.el8_2 | [RHSA-2020:3218](https://patchblox.com/security/data/fix/linux/rhsa-2020-3218.md) | Jul 29, 2020 |
| Linux | perf ol 8 | 0:4.18.0-193.14.3.el8_2 | [ELSA-2020-3218](https://patchblox.com/security/data/fix/linux/elsa-2020-3218.md) | Jul 30, 2020 |
| Linux | python3-perf RHEL 8 | 0:4.18.0-193.14.3.el8_2 | [RHSA-2020:3218](https://patchblox.com/security/data/fix/linux/rhsa-2020-3218.md) | Jul 29, 2020 |
| Linux | python3-perf ol 8 | 0:4.18.0-193.14.3.el8_2 | [ELSA-2020-3218](https://patchblox.com/security/data/fix/linux/elsa-2020-3218.md) | Jul 30, 2020 |

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