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Unscored USN-5002-1 1 CVE

linux-hwe, linux-gke-5.3, linux-raspi2-5.3 vulnerability

Published Jun 23, 2021 · Updated Jun 3, 2026

Summary

Norbert Slusarek discovered a race condition in the CAN BCM networking
protocol of the Linux kernel leading to multiple use-after-free
vulnerabilities. A local attacker could use this issue to execute arbitrary
code.

Fixed packages 3

ReleasePackageFixed in
Ubuntu · 18.04 LTS 18.04:LTS linux-gke-5.3 5.3.0-1044.47
Ubuntu · 18.04 LTS 18.04:LTS linux-hwe 5.3.0-75.71
Ubuntu · 18.04 LTS 18.04:LTS linux-raspi2-5.3 5.3.0-1041.43

Vulnerabilities 1

References

  • report
    https://ubuntu.com/security/CVE-2021-3609