Ofek Kirzner, Adam Morrison, Benedict Schlueter, and Piotr Krysiuk
discovered that the BPF verifier in the Linux kernel missed possible
mispredicted branches due to type confusion, allowing a side-channel
attack. An attacker could use this to expose sensitive information.
(CVE-2021-33624)
It was discovered that the tracing subsystem in the Linux kernel did not
properly keep track of per-cpu ring buffer state. A privileged attacker
could use this to cause a denial of service. (CVE-2021-3679)
It was discovered that the Virtio console implementation in the Linux
kernel did not properly validate input lengths in some situations. A local
attacker could possibly use this to cause a denial of service (system
crash). (CVE-2021-38160)
Michael Wakabayashi discovered that the NFSv4 client implementation in the
Linux kernel did not properly order connection setup operations. An
attacker controlling a remote NFS server could use this to cause a denial
of service on the client. (CVE-2021-38199)
It was discovered that the MAX-3421 host USB device driver in the Linux
kernel did not properly handle device removal events. A physically
proximate attacker could use this to cause a denial of service (system
crash). (CVE-2021-38204)
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Ubuntu | 20.04 | noarch | linux-image-raspi2 | < 5.4.0.1044.79 | UNKNOWN |
Ubuntu | 20.04 | noarch | linux-headers-raspi | < 5.4.0.1044.79 | UNKNOWN |
Ubuntu | 20.04 | noarch | linux-headers-raspi-hwe-18.04 | < 5.4.0.1044.79 | UNKNOWN |
Ubuntu | 20.04 | noarch | linux-headers-raspi-hwe-18.04-edge | < 5.4.0.1044.79 | UNKNOWN |
Ubuntu | 20.04 | noarch | linux-headers-raspi2 | < 5.4.0.1044.79 | UNKNOWN |
Ubuntu | 20.04 | noarch | linux-headers-raspi2-hwe-18.04 | < 5.4.0.1044.79 | UNKNOWN |
Ubuntu | 20.04 | noarch | linux-headers-raspi2-hwe-18.04-edge | < 5.4.0.1044.79 | UNKNOWN |
Ubuntu | 20.04 | noarch | linux-image-raspi | < 5.4.0.1044.79 | UNKNOWN |
Ubuntu | 20.04 | noarch | linux-image-raspi-hwe-18.04 | < 5.4.0.1044.79 | UNKNOWN |
Ubuntu | 20.04 | noarch | linux-image-raspi-hwe-18.04-edge | < 5.4.0.1044.79 | UNKNOWN |