USN-4878-1

Advisory lineage Upstream: 8 Downstream: 0
Published: 16 Mar 2021, 06:21
Last modified:03 Jun 2026, 13:33

Vulnerability Summary

Overall Risk (default)
minimal
0/100
CVSS Score
No data
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

16 Mar 2021, 06:21
Published
Vulnerability first disclosed
03 Jun 2026, 13:33
Last Modified
Vulnerability information updated

Description

linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-gke-5.4, linux-gkeop, linux-gkeop-5.4, linux-hwe-5.4, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities It was discovered that the Marvell WiFi-Ex device driver in the Linux kernel did not properly validate ad-hoc SSIDs. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2020-36158) Ryota Shiga discovered that the sockopt BPF hooks in the Linux kernel could allow a user space program to probe for valid kernel addresses. A local attacker could use this to ease exploitation of another kernel vulnerability. (CVE-2021-20239) It was discovered that the priority inheritance futex implementation in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-3347) 吴异 discovered that the NFS implementation in the Linux kernel did not properly prevent access outside of an NFS export that is a subdirectory of a file system. An attacker could possibly use this to bypass NFS access restrictions. (CVE-2021-3178)

Affected Systems

  • ubuntu•linux

    < 5.4.0-67.75

  • ubuntu•linux-aws

    < 5.4.0-1039.41

  • ubuntu•linux-aws-5.4

    < 5.4.0-1039.41~18.04.1

  • ubuntu•linux-azure

    < 5.4.0-1041.43

  • ubuntu•linux-azure-5.4

    < 5.4.0-1041.43~18.04.1

  • ubuntu•linux-gcp

    < 5.4.0-1038.41

  • ubuntu•linux-gcp-5.4

    < 5.4.0-1038.41~18.04.1

  • ubuntu•linux-gke-5.4

    < 5.4.0-1037.39~18.04.1

  • ubuntu•linux-gkeop

    < 5.4.0-1011.12

  • ubuntu•linux-gkeop-5.4

    < 5.4.0-1011.12~18.04.2

  • ubuntu•linux-hwe-5.4

    < 5.4.0-67.75~18.04.1

  • ubuntu•linux-kvm

    < 5.4.0-1034.35

  • ubuntu•linux-oracle

    < 5.4.0-1039.42

  • ubuntu•linux-oracle-5.4

    < 5.4.0-1039.42~18.04.1

  • ubuntu•linux-raspi

    < 5.4.0-1030.33

  • ubuntu•linux-raspi-5.4

    < 5.4.0-1030.33~18.04.1

References (5)