Canonical Security Advisories · April 2021 — Canonical Security Advisories
391 advisories 387 CVEs 12 EXPLOITED

Ubuntu Security Notices (USN-NNNN-N) for 2021-04. Mirrored into Vulnetix VDB.

Every advisory below is enriched with the Vulnetix VDB exploit-intelligence chip (hover a CVE ID in the interactive page to see CVSS, EPSS, KEV status, and PoC maturity). 12 are already weaponised in the wild — see the Exploited section.

Advisories

USN-4916-2

USN2021-04-22

linux, linux-aws, linux-gke-5.3, linux-hwe, linux-kvm, linux-lts-xenial, linux-oem-5.6, linux-raspi2, linux-raspi2-5.3, linux-snapdragon regression

Upstream advisory

USN-4917-1

USNExploitedHIGH2021-04-15

linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-gke-5.3, linux-gke-5.4, linux-gkeop, linux-gkeop-5.4, linux-hwe, linux-hwe-5.4, linux-hwe-5.8, linux-kvm, linux-oem-5.10, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4, linux-raspi2-5.3 vulnerabilities

CVEs:CVE-2021-3492CVE-2021-3493CVE-2021-29154

Upstream advisory

USN-4916-1

USNExploitedHIGH2021-04-15

linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-dell300x, linux-gcp, linux-gcp-4.15, linux-hwe, linux-kvm, linux-lts-xenial, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities

CVEs:CVE-2021-3493CVE-2021-29154

Upstream advisory

Need live exploit intelligence?

Every CVE above is indexed in the Vulnetix VDB with KEV, EPSS, and PoC maturity. The interactive page surfaces that on hover.