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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | linux | 4.19.20-1 | — |
| Debian 13 | linux | 4.19.20-1 | — |
| Debian 12 | linux | 4.19.20-1 | — |
| Debian 8 | linux | 3.16.64-1 | DLA-1731-1 |
| Debian 8 | linux-4.9 | 4.9.168-1~deb8u1 | DLA-1771-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-raspi-realtime | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv +2 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gke +3 | No fix yet | — |
| Ubuntu 18.04 LTS | linux | 4.15.0-47.50 | USN-3931-1 |
| Ubuntu 18.04 LTS | linux-aws | 4.15.0-1035.37 | USN-3931-1 |
| Ubuntu 18.04 LTS | linux-azure | 4.18.0-1014.14~18.04.1 | USN-3930-2 |
| Ubuntu 18.04 LTS | linux-gcp | 4.15.0-1029.31 | USN-3931-1 |
| Ubuntu 18.04 LTS | linux-gcp-edge | 4.18.0-1008.9~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-hwe | 4.18.0-17.18~18.04.1 | USN-3930-2 |
| Ubuntu 18.04 LTS | linux-kvm | 4.15.0-1031.31 | USN-3931-1 |
| Ubuntu 18.04 LTS | linux-oem | 4.15.0-1035.40 | USN-3931-1 |
| Ubuntu 18.04 LTS | linux-oracle | 4.15.0-1010.12 | USN-3931-1 |
| Ubuntu 18.04 LTS | linux-raspi2 | 4.15.0-1033.35 | USN-3931-1 |
| Ubuntu 18.04 LTS | linux-snapdragon | 4.15.0-1053.57 | — |
| Ubuntu 16.04 LTS | linux | 4.4.0-145.171 | USN-3932-1 |
| Ubuntu 16.04 LTS | linux-aws | 4.4.0-1079.89 | USN-3932-1 |
| Ubuntu 16.04 LTS | linux-aws-hwe | 4.15.0-1035.37~16.04.1 | USN-3931-2 |
| Ubuntu 16.04 LTS | linux-azure | 4.15.0-1041.45 | USN-3931-2 |
| Ubuntu 16.04 LTS | linux-gcp | 4.15.0-1029.31~16.04.1 | USN-3931-2 |
| Ubuntu 16.04 LTS | linux-hwe | 4.15.0-47.50~16.04.1 | USN-3931-2 |
| Ubuntu 16.04 LTS | linux-kvm | 4.4.0-1043.49 | USN-3932-1 |
| Ubuntu 16.04 LTS | linux-oracle | 4.15.0-1010.12~16.04.1 | USN-3931-2 |
| Ubuntu 16.04 LTS | linux-raspi2 | 4.4.0-1106.114 | USN-3932-1 |
| Ubuntu 16.04 LTS | linux-snapdragon | 4.4.0-1110.115 | USN-3932-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | linux | 3.13.0-168.218 | USN-3933-1 |
| Ubuntu 14.04 LTS | linux-aws | 4.4.0-1040.43 | USN-3932-2 |
| Ubuntu 14.04 LTS | linux-azure | 4.15.0-1041.45~14.04.1 | USN-3931-2 |
| Ubuntu 14.04 LTS | linux-lts-xenial | 4.4.0-144.170~14.04.1 | USN-3932-2 |
| Ubuntu Pro FIPS-updates 16.04 LTS | linux-fips | 4.4.0-1008.10 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | kernel-alt | 4.14.0-115.12.1.el7a | RHSA-2019:2809 |
| RHEL 7 | kernel-rt +10 | 3.10.0-957.12.1.rt56.927.el7 | RHSA-2019:0833 |
| RHEL 7 | perf +19 | 3.10.0-957.12.1.el7 | RHSA-2019:2809, RHSA-2019:0818 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7.5 EUS | perf +18 | 3.10.0-862.44.2.el7 | RHSA-2019:3967 |
| RHEL 7.4 TUS | perf +11 | 3.10.0-693.62.1.el7 | RHSA-2020:0103 |
| RHEL 7.4 E4S | perf +13 | 3.10.0-693.62.1.el7 | RHSA-2020:0103 |
| RHEL 7.4 AUS | perf +11 | 3.10.0-693.62.1.el7 | RHSA-2020:0103 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 | kernel-azure +2 | 4.12.14-5.24.1 | SUSE-SU-2019:0785-1 |
| SLES 15 | kernel-default +3 | 4.12.14-150.14.2 | SUSE-SU-2019:0784-1 |
| SLES 15 | kernel-docs +2 | 4.12.14-150.14.1 | SUSE-SU-2019:0784-1 |
| SLES 12 SP4 | kernel-azure +2 | 4.12.14-6.9.1 | SUSE-SU-2019:0767-1 |
| SLES 12 SP4 | kernel-docs +4 | 4.12.14-95.13.1 | SUSE-SU-2019:0765-1 |
| SLES 12 SP3 | kernel-azure +2 | 4.4.176-4.25.1 | SUSE-SU-2019:0901-1 |
| SLES 12 SP3 | kernel-docs +4 | 4.4.175-94.79.1 | SUSE-SU-2019:0541-1 |
| SLES 12 SP2 | kernel-syms +2 | 4.4.121-92.104.1 | SUSE-SU-2019:0828-1 |
| SLES 12 SP2 | kgraft-patch-SLE12-SP2_Update_20 | 11-2.1 | SUSE-SU-2019:0683-1 |
| SLES 12 SP2 | kgraft-patch-SLE12-SP2_Update_21 +1 | 10-2.1 | SUSE-SU-2019:0683-1 |
| SLES 12 SP2 | kgraft-patch-SLE12-SP2_Update_23 | 7-2.1 | SUSE-SU-2019:0683-1 |
| SLES 12 SP2 | kgraft-patch-SLE12-SP2_Update_24 | 6-2.1 | SUSE-SU-2019:0709-1 |
| SLES 12 SP2 | kgraft-patch-SLE12-SP2_Update_25 | 5-2.1 | SUSE-SU-2019:0722-1 |
| SLES 12 SP2 | kgraft-patch-SLE12-SP2_Update_26 | 4-2.1 | SUSE-SU-2019:0709-1 |
| SLES 12 SP2 | kgraft-patch-SLE12-SP2_Update_28 | 1-3.3.1 | SUSE-SU-2019:0828-1 |
| SLES 12 SP1 | kernel-xen +3 | 3.12.74-60.64.110.1 | SUSE-SU-2019:1289-1 |
| SLES 12 SP1 | kgraft-patch-SLE12-SP1_Update_26 | 12-2.1 | SUSE-SU-2019:0672-1 |
| SLES 12 SP1 | kgraft-patch-SLE12-SP1_Update_27 | 10-2.1 | SUSE-SU-2019:0672-1 |
| SLES 12 SP1 | kgraft-patch-SLE12-SP1_Update_28 +1 | 9-2.1 | SUSE-SU-2019:0672-1 |
| SLES 12 SP1 | kgraft-patch-SLE12-SP1_Update_30 | 8-2.1 | SUSE-SU-2019:0672-1 |
| SLES 12 SP1 | kgraft-patch-SLE12-SP1_Update_31 +1 | 6-2.1 | SUSE-SU-2019:0672-1 |
| SLES 12 SP1 | kgraft-patch-SLE12-SP1_Update_33 | 1-2.3.1 | SUSE-SU-2019:1289-1 |
| SLES 12 SP1 | lttng-modules | 2.7.0-4.4.1 | SUSE-SU-2019:1289-1 |
Show 10 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 | kernel-ec2 | 3.12.74-60.64.110.1 | SUSE-SU-2019:1289-1 |
| SLES for SAP 12 SP4 | kernel-azure +2 | 4.12.14-6.9.1 | SUSE-SU-2019:0767-1 |
| SLES for SAP 12 SP4 | kernel-syms +2 | 4.12.14-95.13.1 | SUSE-SU-2019:0765-1 |
| SLES for SAP 12 SP3 | kernel-azure +2 | 4.4.176-4.25.1 | SUSE-SU-2019:0901-1 |
| SLES for SAP 12 SP3 | kernel-syms +2 | 4.4.175-94.79.1 | SUSE-SU-2019:0541-1 |
| SLES for SAP 12 SP2 | kernel-syms +2 | 4.4.121-92.104.1 | SUSE-SU-2019:0828-1 |
| SLES for SAP 12 SP2 | kgraft-patch-SLE12-SP2_Update_20 | 11-2.1 | SUSE-SU-2019:0683-1 |
| SLES for SAP 12 SP2 | kgraft-patch-SLE12-SP2_Update_21 +1 | 10-2.1 | SUSE-SU-2019:0683-1 |
| SLES for SAP 12 SP2 | kgraft-patch-SLE12-SP2_Update_23 | 7-2.1 | SUSE-SU-2019:0683-1 |
| SLES for SAP 12 SP2 | kgraft-patch-SLE12-SP2_Update_24 | 6-2.1 | SUSE-SU-2019:0709-1 |
| SLES for SAP 12 SP2 | kgraft-patch-SLE12-SP2_Update_25 | 5-2.1 | SUSE-SU-2019:0722-1 |
| SLES for SAP 12 SP2 | kgraft-patch-SLE12-SP2_Update_26 | 4-2.1 | SUSE-SU-2019:0709-1 |
| SLES for SAP 12 SP2 | kgraft-patch-SLE12-SP2_Update_28 | 1-3.3.1 | SUSE-SU-2019:0828-1 |
| SLES for SAP 12 SP1 | kernel-xen +3 | 3.12.74-60.64.110.1 | SUSE-SU-2019:1289-1 |
| SLES for SAP 12 SP1 | kgraft-patch-SLE12-SP1_Update_26 | 12-2.1 | SUSE-SU-2019:0672-1 |
| SLES for SAP 12 SP1 | kgraft-patch-SLE12-SP1_Update_27 | 10-2.1 | SUSE-SU-2019:0672-1 |
| SLES for SAP 12 SP1 | kgraft-patch-SLE12-SP1_Update_28 +1 | 9-2.1 | SUSE-SU-2019:0672-1 |
| SLES for SAP 12 SP1 | kgraft-patch-SLE12-SP1_Update_30 | 8-2.1 | SUSE-SU-2019:0672-1 |
| SLES for SAP 12 SP1 | kgraft-patch-SLE12-SP1_Update_31 +1 | 6-2.1 | SUSE-SU-2019:0672-1 |
| SLES for SAP 12 SP1 | kgraft-patch-SLE12-SP1_Update_33 | 1-2.3.1 | SUSE-SU-2019:1289-1 |
| SLES for SAP 12 SP1 | lttng-modules | 2.7.0-4.4.1 | SUSE-SU-2019:1289-1 |
| SLE Live Patching 15 | kernel-default | 4.12.14-150.14.2 | SUSE-SU-2019:0784-1 |
| SLE Live Patching 15 | kernel-livepatch-SLE15_Update_0 | 9-25.2 | SUSE-SU-2019:0740-1 |
| SLE Live Patching 15 | kernel-livepatch-SLE15_Update_1 +1 | 8-2.1 | SUSE-SU-2019:0745-1, SUSE-SU-2019:0740-1 |
| SLE Live Patching 15 | kernel-livepatch-SLE15_Update_3 | 6-2.1 | SUSE-SU-2019:0745-1 |
| SLE Live Patching 15 | kernel-livepatch-SLE15_Update_4 +1 | 5-2.1 | SUSE-SU-2019:0745-1 |
| SLE Live Patching 15 | kernel-livepatch-SLE15_Update_6 | 4-2.1 | SUSE-SU-2019:0745-1 |
| SLE Live Patching 15 | kernel-livepatch-SLE15_Update_7 | 3-2.1 | SUSE-SU-2019:0845-1 |
| SLE Live Patching 15 | kernel-livepatch-SLE15_Update_8 | 2-2.1 | SUSE-SU-2019:0845-1 |
| SLE Live Patching 15 | kernel-livepatch-SLE15_Update_9 | 1-1.9.3 | SUSE-SU-2019:0784-1 |
| SLE Live Patching 12 SP4 | kgraft-patch-SLE12-SP4_Update_0 | 4-2.10.2 | SUSE-SU-2019:0726-1 |
| SLE Live Patching 12 SP4 | kgraft-patch-SLE12-SP4_Update_1 | 3-2.1 | SUSE-SU-2019:0726-1 |
| SLE Live Patching 12 SP4 | kgraft-patch-SLE12-SP4_Update_2 | 2-2.1 | SUSE-SU-2019:0726-1 |
| SLE Live Patching 12 SP4 | kgraft-patch-SLE12-SP4_Update_3 | 1-6.7.1 | SUSE-SU-2019:0765-1 |
| SLE Live Patching 12 SP3 | kgraft-patch-SLE12-SP3_Update_10 +1 | 11-2.1 | SUSE-SU-2019:0754-1 |
| SLE Live Patching 12 SP3 | kgraft-patch-SLE12-SP3_Update_12 +1 | 9-2.1 | SUSE-SU-2019:0754-1 |
| SLE Live Patching 12 SP3 | kgraft-patch-SLE12-SP3_Update_14 +1 | 7-2.1 | SUSE-SU-2019:0754-1 |
| SLE Live Patching 12 SP3 | kgraft-patch-SLE12-SP3_Update_16 +3 | 5-2.1 | SUSE-SU-2019:0754-1 |
| SLE Live Patching 12 SP3 | kgraft-patch-SLE12-SP3_Update_20 | 4-2.1 | SUSE-SU-2019:0754-1 |
| SLE Live Patching 12 SP3 | kgraft-patch-SLE12-SP3_Update_21 +1 | 3-2.1 | SUSE-SU-2019:0754-1 |
| SLE Live Patching 12 SP3 | kgraft-patch-SLE12-SP3_Update_23 | 1-4.7.1 | SUSE-SU-2019:0541-1 |
| SUSE OpenStack Cloud 7 | kernel-syms +2 | 4.4.121-92.104.1 | SUSE-SU-2019:0828-1 |
| SUSE OpenStack Cloud 7 | kgraft-patch-SLE12-SP2_Update_28 | 1-3.3.1 | SUSE-SU-2019:0828-1 |
| SUSE Enterprise Storage 4 | kernel-syms +2 | 4.4.121-92.104.1 | SUSE-SU-2019:0828-1 |
| SUSE Enterprise Storage 4 | kgraft-patch-SLE12-SP2_Update_28 | 1-3.3.1 | SUSE-SU-2019:0828-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | kernel-source | 5.14.6-1.4 | openSUSE-SU-2024:13704-1, openSUSE-SU-2024:10728-1 |
| openSUSE Leap 15.0 | kernel-source | 4.12.14-lp150.12.48.1 | openSUSE-SU-2019:0203-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | perf +8 | 4.14.101-91.76.amzn2 | ALAS2-2019-1165 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | kernel-uek +5 | 4.1.12-124.43.4.el7uek | ELSA-2020-5866, ELSA-2019-4612 |
| Oracle Linux 7 | kernel-uek-tools +3 | 4.14.35-1844.4.5.el7uek | ELSA-2019-4612 |
| Oracle Linux 7 | perf +12 | 3.10.0-957.12.1.el7 | ELSA-2019-4612, ELSA-2019-0818 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- Linux - 'kvm_ioctl_create_device()' NULL Pointer Dereference EDB-46388 · dos · Feb 15, 2019 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 37
- USN-3931-1 linux, linux-aws, linux-gcp, linux-kvm, linux-oem, linux-oracle, linux-raspi2 vulnerabilities Ubuntu Security Notices (USN) · Sep 7, 2026
- USN-3931-2 linux-hwe, linux-aws-hwe, linux-azure, linux-gcp, linux-oracle vulnerabilities Ubuntu Security Notices (USN) · Sep 7, 2026
- USN-3930-2 linux-hwe, linux-azure vulnerabilities Ubuntu Security Notices (USN) · Sep 7, 2026
- USN-3932-2 linux-lts-xenial, linux-aws vulnerabilities Ubuntu Security Notices (USN) · Sep 7, 2026
- RHSA-2020:0103 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Aug 26, 2026
- RHSA-2019:3967 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jul 8, 2026
- RHSA-2019:2809 Red Hat Security Advisory: kernel-alt security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2019:0833 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2019:0818 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- USN-3932-1 linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- USN-3933-1 linux vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-1731-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1771-1 linux-4.9 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2019:0784-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:0745-1 Security update for the Linux Kernel (Live Patch 2 for SLE 15) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:0722-1 Security update for the Linux Kernel (Live Patch 25 for SLE 12 SP2) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:0765-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:0672-1 Security update for the Linux Kernel (Live Patch 32 for SLE 12 SP1) SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:13704-1 kernel-devel-longterm-6.6.17-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:0901-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:0754-1 Security update for the Linux Kernel (Live Patch 19 for SLE 12 SP3) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:1289-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:0709-1 Security update for the Linux Kernel (Live Patch 24 for SLE 12 SP2) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:0828-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:0845-1 Security update for the Linux Kernel (Live Patch 8 for SLE 15) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:0541-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:0740-1 Security update for the Linux Kernel (Live Patch 1 for SLE 15) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:0683-1 Security update for the Linux Kernel (Live Patch 22 for SLE 12 SP2) SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:0785-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10728-1 kernel-devel-5.14.6-1.4 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:0726-1 Security update for the Linux Kernel (Live Patch 2 for SLE 12 SP4) SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2019:0203-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2019:0767-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- ELSA-2020-5866 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Oct 6, 2020
- ELSA-2019-0818 Important: kernel security and bug fix update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Apr 23, 2019
- ELSA-2019-4612 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Apr 12, 2019
- ALAS2-2019-1165 Important: kernel security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Mar 8, 2019
References
- 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
- 46388 exploit
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.8
- https://github.com/torvalds/linux/commit/cfa39381173d5f969daf43582c95ad679189cbc9
- 107127 vdb-entry
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.156
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cfa39381173d5f969daf43582c95ad679189cbc9
- [debian-lts-announce] 20190327 [SECURITY] [DLA 1731-1] linux security update mailing-list
- [debian-lts-announce] 20190401 [SECURITY] [DLA 1731-2] linux regression update mailing-list
- USN-3932-1 vendor-advisory
- USN-3932-2 vendor-advisory
- USN-3930-1 vendor-advisory
- USN-3931-1 vendor-advisory
- USN-3933-2 vendor-advisory
- USN-3931-2 vendor-advisory
- USN-3930-2 vendor-advisory
- USN-3933-1 vendor-advisory
- https://support.f5.com/csp/article/K11186236
- RHSA-2019:0833 vendor-advisory
- RHSA-2019:0818 vendor-advisory
- [debian-lts-announce] 20190503 [SECURITY] [DLA 1771-1] linux-4.9 security update mailing-list
- RHBA-2019:0959 vendor-advisory
- RHSA-2019:2809 vendor-advisory
- https://support.f5.com/csp/article/K11186236?utm_source=f5support&%3Butm_medium=RSS
- RHSA-2019:3967 vendor-advisory
- RHSA-2020:0103 vendor-advisory