CVE-2021-3506

Advisory lineage Upstream: 0 Downstream: 11
Modified
Published: 19 Apr 2021, 21:11
Last modified:03 Aug 2024, 16:53

Vulnerability Summary

Overall Risk (default)
medium
28/100
CVSS Score
7.1 HIGH
v3.1 (nvd)
EPSS Score
0.14% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

19 Apr 2021, 21:11
Published
Vulnerability first disclosed
03 Aug 2024, 16:53
Last Modified
Vulnerability information updated

Description

An out-of-bounds (OOB) memory access flaw was found in fs/f2fs/node.c in the f2fs module in the Linux kernel in versions before 5.12.0-rc4. A bounds check failure allows a local attacker to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability.

CVSS Metrics

  • v3.1•HIGH•Score: 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
  • v2.0•MEDIUM•Score: 5.6AV:L/AC:L/Au:N/C:P/I:N/A:C

EPSS Trends

Current EPSS score: 0.14%• Percentile: 33%

Techniques & Countermeasures

  • CWE-125•Out-of-bounds Read

    The product reads data past the end, or before the beginning, of the intended buffer.

Affected Systems

  • debian•debian_linux

    9.0

  • linux•linux_kernel

    < 5.12 | 5.12 | 5.12:rc1 | 5.12:rc2 | 5.12:rc3

  • netapp•cloud_backup

    na

  • netapp•h300e

    na

  • netapp•h300s_firmware

    na

  • netapp•h410c_firmware

    na

  • netapp•h410s_firmware

    na

  • netapp•h500e

    na

  • netapp•h500s_firmware

    na

  • netapp•h700e

    na

  • netapp•h700s_firmware

    na

  • netapp•solidfire_baseboard_management_controller_firmware

    na

References (6)