CVE-2020-9391
Fixed in a distro release EPSS <1%
An issue was discovered in the Linux kernel 5.4 and 5.5 through 5.5.6 on the AArch64 architecture. It ignores the top byte in the address passed to the brk system call, potentially moving the memory break downwards when the application expects it to move upwards, aka CID-dcde237319e6. This has been observed to cause heap corruption with the GNU C Library malloc implementation.
Products: linux_kernel, fedoraproject fedora, netapp active_iq_unified_manager, netapp cloud_backup, netapp data_availability_services, netapp hci_management_node, netapp solidfire, netapp steelstore_cloud_integrated_storage, netapp h410c_firmware
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | linux | 5.5.13-1 |
| Debian 13 | linux | 5.5.13-1 |
| Debian 14 | linux | 5.5.13-1 |
| Ubuntu 16.04 LTS | linux-hwe-edge | no fix |
| Ubuntu 18.04 LTS | linux-azure-edge | no fix |
| Ubuntu 18.04 LTS | linux-gcp-edge | no fix |
| Ubuntu 18.04 LTS | linux-hwe-edge | no fix |
| Ubuntu 20.04 LTS | linux-raspi2 | no fix |