CVE-2020-27674
Fixed in a distro release EPSS <1%
An issue was discovered in Xen through 4.14.x allowing x86 PV guest OS users to gain guest OS privileges by modifying kernel memory contents, because invalidation of TLB entries is mishandled during use of an INVLPG-like attack technique.
Products: xen, fedoraproject fedora, debian_linux
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Alpine 3.10 | xen | 4.12.4-r0 |
| Alpine 3.11 | xen | 4.13.2-r0 |
| Alpine 3.12 | xen | 4.13.2-r0 |
| Alpine 3.13 | xen | 4.14.0-r2 |
| Alpine 3.14 | xen | 4.14.0-r2 |
| Alpine 3.15 | xen | 4.14.0-r2 |
| Alpine 3.16 | xen | 4.14.0-r2 |
| Alpine 3.17 | xen | 4.14.0-r2 |
| Alpine 3.18 | xen | 4.14.0-r2 |
| Alpine 3.19 | xen | 4.14.0-r2 |
| Alpine 3.20 | xen | 4.14.0-r2 |
| Alpine 3.21 | xen | 4.14.0-r2 |
| Alpine 3.22 | xen | 4.14.0-r2 |
| Alpine 3.23 | xen | 4.14.0-r2 |
| Alpine 3.24 | xen | 4.14.0-r2 |
| Debian 10 | xen | 4.11.4+57-g41a822c392-1 |
| Debian 12 | xen | 4.14.0+80-gd101b417b7-1 |
| Debian 13 | xen | 4.14.0+80-gd101b417b7-1 |
| Debian 14 | xen | 4.14.0+80-gd101b417b7-1 |
| SUSE Enterprise Storage 5 | xen | 4.9.4_14-3.77.1 |
| SUSE HPE Helion OpenStack 8 | xen | 4.9.4_14-3.77.1 |
| SUSE Linux Enterprise High Performance Computing 15-ESPOS | xen | 4.10.4_22-3.50.1 |
| SUSE Linux Enterprise High Performance Computing 15-LTSS | xen | 4.10.4_22-3.50.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP1 | xen | 4.12.4_04-3.37.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP2 | xen | 4.13.2_04-3.19.1 |
| SUSE Linux Enterprise Module for Server Applications 15 SP1 | xen | 4.12.4_04-3.37.1 |
| SUSE Linux Enterprise Module for Server Applications 15 SP2 | xen | 4.13.2_04-3.19.1 |
| SUSE Linux Enterprise Server 11 SP4-LTSS | xen | 4.4.4_46-61.58.1 |
| SUSE Linux Enterprise Server 12 SP2-BCL | xen | 4.7.6_12-43.70.1 |
| SUSE Linux Enterprise Server 12 SP2-LTSS | xen | 4.7.6_12-43.70.1 |
| SUSE Linux Enterprise Server 12 SP3-BCL | xen | 4.9.4_14-3.77.1 |
| SUSE Linux Enterprise Server 12 SP3-LTSS | xen | 4.9.4_14-3.77.1 |
| SUSE Linux Enterprise Server 12 SP4-LTSS | xen | 4.11.4_14-2.45.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP2 | xen | 4.7.6_12-43.70.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | xen | 4.9.4_14-3.77.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | xen | 4.11.4_14-2.45.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 | xen | 4.10.4_22-3.50.1 |
| SUSE OpenStack Cloud 7 | xen | 4.7.6_12-43.70.1 |
| SUSE OpenStack Cloud 8 | xen | 4.9.4_14-3.77.1 |
| SUSE OpenStack Cloud 9 | xen | 4.11.4_14-2.45.1 |
| SUSE OpenStack Cloud Crowbar 8 | xen | 4.9.4_14-3.77.1 |
| SUSE OpenStack Cloud Crowbar 9 | xen | 4.11.4_14-2.45.1 |
| Ubuntu 16.04 LTS | xen | no fix |
| Ubuntu 18.04 LTS | xen | no fix |
| Ubuntu 20.04 LTS | xen | no fix |
| openSUSE Leap 15.1 | xen | 4.12.4_04-lp151.2.33.1 |
| openSUSE Leap 15.2 | xen | 4.13.2_04-lp152.2.18.1 |
| openSUSE Tumbleweed | xen | 4.15.1_01-1.2 |