CVE-2020-15852
Fixed in a distro release EPSS <1%
An issue was discovered in the Linux kernel 5.5 through 5.7.9, as used in Xen through 4.13.x for x86 PV guests. An attacker may be granted the I/O port permissions of an unrelated task. This occurs because tss_invalidate_io_bitmap mishandling causes a loss of synchronization between the I/O bitmaps of TSS and Xen, aka CID-cadfad870154.
Products: linux_kernel, xen, netapp cloud_backup, netapp steelstore_cloud_integrated_storage
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | linux | 5.7.10-1 |
| Debian 13 | linux | 5.7.10-1 |
| Debian 14 | linux | 5.7.10-1 |
| Ubuntu 16.04 LTS | linux-hwe-edge | no fix |
| Ubuntu 18.04 LTS | linux-aws-5.0 | no fix |
| Ubuntu 18.04 LTS | linux-azure | no fix |
| Ubuntu 18.04 LTS | linux-azure-edge | no fix |
| Ubuntu 18.04 LTS | linux-gcp | no fix |
| Ubuntu 18.04 LTS | linux-gcp-5.3 | no fix |
| Ubuntu 18.04 LTS | linux-gcp-edge | no fix |
| Ubuntu 18.04 LTS | linux-hwe-edge | no fix |
| Ubuntu 18.04 LTS | linux-oracle-5.0 | no fix |
| Ubuntu 18.04 LTS | linux-oracle-5.3 | no fix |
| Ubuntu 20.04 LTS | linux-oem-5.6 | 5.6.0-1023.23 |
| Ubuntu 20.04 LTS | linux-raspi2 | no fix |
| Ubuntu Pro 14.04 LTS | linux | no fix |
| Ubuntu Pro 14.04 LTS | linux-aws | no fix |
| Ubuntu Pro 14.04 LTS | linux-azure | no fix |
| Ubuntu Pro 14.04 LTS | linux-lts-xenial | no fix |