CVE-2021-3609

Advisory lineage Upstream: 0 Downstream: 47
Modified
Published: 03 Mar 2022, 18:24
Last modified:03 Aug 2024, 17:01

Vulnerability Summary

Overall Risk (default)
medium
38/100
CVSS Score
7 HIGH
v3.1 (nvd)
EPSS Score
0.06% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

03 Mar 2022, 18:24
Published
Vulnerability first disclosed
03 Aug 2024, 17:01
Last Modified
Vulnerability information updated

Description

.A flaw was found in the CAN BCM networking protocol in the Linux kernel, where a local attacker can abuse a flaw in the CAN subsystem to corrupt memory, crash the system or escalate privileges. This race condition in net/can/bcm.c in the Linux kernel allows for local privilege escalation to root.

CVSS Metrics

  • v3.1•HIGH•Score: 7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • v2.0•MEDIUM•Score: 6.9AV:L/AC:M/Au:N/C:C/I:C/A:C

EPSS Trends

Current EPSS score: 0.06%• Percentile: 19%

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.

Affected Systems

  • linux•linux_kernel

    ≥ 2.6.25, < 4.4.276 | ≥ 4.5, < 4.9.276 | ≥ 4.10, < 4.14.240 | ≥ 4.15, < 4.19.198 | ≥ 4.20, < 5.4.132 | ≥ 5.5.0, < 5.10.50 | ≥ 5.11, < 5.12.17 | ≥ 5.13, < 5.13.2

  • netapp•h300e

    na

  • netapp•h300s_firmware

    na

  • netapp•h410c_firmware

    na

  • netapp•h410s_firmware

    na

  • netapp•h500e

    na

  • netapp•h500s_firmware

    na

  • netapp•h610c_firmware

    na

  • netapp•h610s_firmware

    na

  • netapp•h615c_firmware

    na

  • netapp•h700e

    na

  • netapp•h700s_firmware

    na

  • redhat•3scale_api_management

    2.0

  • redhat•build_of_quarkus

    1.0

  • redhat•codeready_linux_builder_eus

    8.1 | 8.2 | 8.4

  • redhat•codeready_linux_builder_for_power_little_endian_eus

    8.1 | 8.2 | 8.4

  • redhat•enterprise_linux_aus

    8.2

  • redhat•enterprise_linux_eus

    8.1 | 8.2 | 8.4

  • redhat•enterprise_linux_for_ibm_z_systems_eus

    8.4

  • redhat•enterprise_linux_for_ibm_z_systems_eus_s390x

    8.1

  • redhat•enterprise_linux_for_power_little_endian_eus

    8.1 | 8.2 | 8.4

  • redhat•enterprise_linux_for_real_time

    8.0

  • redhat•enterprise_linux_for_real_time_for_nfv

    8.0

  • redhat•enterprise_linux_for_real_time_for_nfv_tus

    8.0 | 8.2

  • redhat•enterprise_linux_for_real_time_tus

    8.0 | 8.2

  • redhat•enterprise_linux_server_aus

    8.2 | 8.4

  • redhat•enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions

    8.1 | 8.2 | 8.4

  • redhat•enterprise_linux_server_tus

    8.2 | 8.4

  • redhat•enterprise_linux_server_update_services_for_sap_solutions

    8.1 | 8.2 | 8.4

  • redhat•openshift_container_platform

    4.6 | 4.7 | 4.8

  • redhat•virtualization

    4.0

  • redhat•virtualization_host

    4.0

References (5)