Vulnerability Monitor

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CVE-2020-29368

An issue was discovered in __split_huge_pmd in mm/huge_memory.c in the Linux kernel before 5.7.5. The copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check, aka CID-c444eb564fb1.

Published

2020-11-28T07:15:11.460

Last Modified

2024-11-21T05:23:55.457

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.0 (HIGH)

CVSSv2 Vector

AV:L/AC:M/Au:N/C:C/I:C/A:C

  • Access Vector: LOCAL
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: COMPLETE
  • Integrity Impact: COMPLETE
  • Availability Impact: COMPLETE
Exploitability Score

3.4

Impact Score

10.0

Weaknesses
  • Type: Primary
    CWE-362
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System linux linux_kernel < 4.9.228 Yes
Operating System linux linux_kernel < 4.14.185 Yes
Operating System linux linux_kernel < 4.19.129 Yes
Operating System linux linux_kernel < 5.4.48 Yes
Operating System linux linux_kernel < 5.7.5 Yes
Application netapp cloud_backup - Yes
Application netapp element_software - Yes
Application netapp hci_management_node - Yes
Application netapp solidfire - Yes
Operating System netapp hci_bootstrap_os - Yes
Hardware netapp hci_compute_node - No
Operating System netapp h410c_firmware - Yes
Hardware netapp h410c - No
References