get_gate_page in mm/gup.c in the Linux kernel 5.7.x and 5.8.x before 5.8.7 allows privilege escalation because of incorrect reference counting (caused by gate page mishandling) of the struct page that backs the vsyscall page. The result is a refcount underflow. This can be triggered by any 64-bit process that can use ptrace() or process_vm_readv(), aka CID-9fa2dd946743.
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No Fix Known
No patch has been released yet. Apply workarounds or mitigations where available.
| Vendor | Product | Versions | Fixed In |
|---|---|---|---|
| linux | linux_kernel | 5.7.0 - 5.8.7 | - |
| netapp | cloud_backup | - | - |
| netapp | solidfire\,_enterprise_sds_\&_hci_storage_node |
Published
CVE disclosed publicly
Last Modified
Most recent update
Indexed to CVEInsight
Added to this platform
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6
Affected Products
12
References
linux / linux_kernel
| - |
| - |
| netapp | solidfire_\&_hci_management_node | - | - |
| netapp | hci_compute_node | - | - |
| netapp | solidfire_baseboard_management_controller | - | - |
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability
Impact