CVE-2020-25221

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.
Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
cpe:2.3:a:netapp:solidfire\,_enterprise_sds_\&_hci_storage_node:-:*:*:*:*:*:*:*
cpe:2.3:a:netapp:solidfire_\&_hci_management_node:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:hci_compute_node:-:*:*:*:*:*:*:*
cpe:2.3:h:netapp:solidfire_baseboard_management_controller:-:*:*:*:*:*:*:*

History

21 Nov 2024, 05:17

Type Values Removed Values Added
References () http://www.openwall.com/lists/oss-security/2020/09/10/4 - Mailing List, Third Party Advisory () http://www.openwall.com/lists/oss-security/2020/09/10/4 - Mailing List, Third Party Advisory
References () https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.7 - Release Notes, Vendor Advisory () https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.7 - Release Notes, Vendor Advisory
References () https://git.kernel.org/linus/8891adc61dce2a8a41fc0c23262b681c3ec4b73a - Issue Tracking, Patch, Vendor Advisory () https://git.kernel.org/linus/8891adc61dce2a8a41fc0c23262b681c3ec4b73a - Issue Tracking, Patch, Vendor Advisory
References () https://git.kernel.org/linus/9fa2dd946743ae6f30dc4830da19147bf100a7f2 - Issue Tracking, Patch, Vendor Advisory () https://git.kernel.org/linus/9fa2dd946743ae6f30dc4830da19147bf100a7f2 - Issue Tracking, Patch, Vendor Advisory
References () https://security.netapp.com/advisory/ntap-20201001-0003/ - Third Party Advisory () https://security.netapp.com/advisory/ntap-20201001-0003/ - Third Party Advisory
References () https://www.openwall.com/lists/oss-security/2020/09/08/4 - Mailing List, Patch, Third Party Advisory () https://www.openwall.com/lists/oss-security/2020/09/08/4 - Mailing List, Patch, Third Party Advisory

Information

Published : 2020-09-10 14:15

Updated : 2024-11-21 05:17


NVD link : CVE-2020-25221

Mitre link : CVE-2020-25221

CVE.ORG link : CVE-2020-25221


JSON object : View

Products Affected

netapp

  • cloud_backup
  • solidfire_\&_hci_management_node
  • solidfire_baseboard_management_controller
  • hci_compute_node
  • solidfire\,_enterprise_sds_\&_hci_storage_node

linux

  • linux_kernel
CWE
CWE-672

Operation on a Resource after Expiration or Release