CVE-2020-29374

Advisory lineage Upstream: 0 Downstream: 18
Modified
Published: 28 Nov 2020, 06:18
Last modified:04 Aug 2024, 16:48

Vulnerability Summary

Overall Risk (default)
low
24/100
CVSS Score
3.6 LOW
v3.1 (nvd)
EPSS Score
0.02% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
2 found
Dark Web
Not detected

Timeline

28 Nov 2020, 06:18
Published
Vulnerability first disclosed
04 Aug 2024, 16:48
Last Modified
Vulnerability information updated

Description

An issue was discovered in the Linux kernel before 5.7.3, related to mm/gup.c and mm/huge_memory.c. The get_user_pages (aka gup) implementation, when used for a copy-on-write page, does not properly consider the semantics of read operations and therefore can grant unintended write access, aka CID-17839856fd58.

CVSS Metrics

  • v3.1•LOW•Score: 3.6CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
  • v2.0•LOW•Score: 3.3AV:L/AC:M/Au:N/C:P/I:P/A:N

EPSS Trends

Current EPSS score: 0.02%• Percentile: 5%

Techniques & Countermeasures

  • CWE-362•Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

    The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

  • CWE-863•Incorrect Authorization

    The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

Affected Systems

  • debian•debian_linux

    9.0 | 10.0

  • linux•linux_kernel

    < 5.7.3

  • netapp•500f_firmware

    na

  • netapp•a250_firmware

    na

  • netapp•h410c_firmware

    na

  • netapp•hci_compute_node_firmware

    na

  • netapp•solidfire_\&_hci_management_node

    na

  • netapp•solidfire_\&_hci_storage_node

    na

References (9)