CVE-2021-28038

Advisory lineage Upstream: 0 Downstream: 30
Modified
Published: 05 Mar 2021, 00:00
Last modified:03 Aug 2024, 21:33

Vulnerability Summary

Overall Risk (default)
medium
26/100
CVSS Score
6.5 MEDIUM
v3.1 (nvd)
EPSS Score
0.06% LOW
0% probability -0.33%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

05 Mar 2021, 00:00
Published
Vulnerability first disclosed
03 Aug 2024, 21:33
Last Modified
Vulnerability information updated

Description

An issue was discovered in the Linux kernel through 5.11.3, as used with Xen PV. A certain part of the netback driver lacks necessary treatment of errors such as failed memory allocations (as a result of changes to the handling of grant mapping errors). A host OS denial of service may occur during misbehavior of a networking frontend driver. NOTE: this issue exists because of an incomplete fix for CVE-2021-26931.

CVSS Metrics

  • v3.1•MEDIUM•Score: 6.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
  • v2.0•MEDIUM•Score: 4.9AV:L/AC:L/Au:N/C:N/I:N/A:C

EPSS Trends

Current EPSS score: 0.06%• Percentile: 18%

Techniques & Countermeasures

  • CWE-770•Allocation of Resources Without Limits or Throttling

    The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

Affected Systems

  • debian•debian_linux

    9.0

  • linux•linux_kernel

    ≥ 2.6.39, < 4.4.260 | ≥ 4.5.0, < 4.9.260 | ≥ 4.10.0, < 4.14.224 | ≥ 4.15.0, < 4.19.179 | ≥ 4.20.0, < 5.4.103 | ≥ 5.10.0, < 5.10.21 | ≥ 5.11.0, < 5.11.4 | 5.12:rc1 | 5.12:rc2

  • netapp•cloud_backup

    na

  • netapp•solidfire_baseboard_management_controller_firmware

    na

References (6)