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A potential vulnerability in some AMD processors using frequency scaling may allow an authenticated attacker to execute a timing attack to potentially enable information disclosure.
1 affected package
amd64-microcode
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| amd64-microcode | — | — | Not affected | Not affected | Not affected |
A timing and power-based side channel attack leveraging the x86 PREFETCH instructions on some AMD CPUs could potentially result in leaked kernel address space information.
1 affected package
amd64-microcode
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| amd64-microcode | — | Not affected | Not affected | Not affected | Not affected |
Some fixes available 46 of 56
Systems with microprocessors utilizing speculative execution and indirect branch prediction may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis.
87 affected packages
linux, linux-goldfish, linux-grouper, linux-lts-quantal, linux-lts-raring...
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| linux | — | Not affected | Not affected | Not affected | Not affected |
| linux-goldfish | — | — | — | — | Not in release |
| linux-grouper | — | — | — | — | Not in release |
| linux-lts-quantal | — | — | — | — | Not in release |
| linux-lts-raring | — | — | — | — | Not in release |
| linux-lts-saucy | — | — | — | — | Not in release |
| linux-aws | — | Not affected | Not affected | Not affected | Not affected |
| linux-flo | — | — | — | — | Not in release |
| linux-gke | — | Not affected | Not affected | Ignored | Not in release |
| linux-hwe | — | Not in release | Not in release | Not in release | Not affected |
| linux-lts-utopic | — | — | — | — | Not in release |
| linux-lts-vivid | — | — | — | — | Not in release |
| linux-lts-wily | — | — | — | — | Not in release |
| linux-lts-xenial | — | Not in release | Not in release | Not in release | Not in release |
| linux-mako | — | — | — | — | Not in release |
| linux-manta | — | — | — | — | Not in release |
| linux-raspi2 | — | Not in release | Not in release | Ignored | Not affected |
| linux-snapdragon | — | Not in release | Not in release | Not in release | Not affected |
| amd64-microcode | — | Not affected | Not affected | Not affected | Fixed |
| firefox | — | Not affected | Not affected | Not in release | Fixed |
| intel-microcode | — | Not affected | Not affected | Not affected | Not affected |
| libvirt | — | Not affected | Not affected | Not affected | Not affected |
| linux-azure | — | Not affected | Not affected | Not affected | Not affected |
| linux-azure-edge | — | Not in release | Not in release | Not in release | Not affected |
| linux-euclid | — | — | — | — | Not in release |
| linux-gcp | — | Not affected | Not affected | Not affected | Not affected |
| linux-kvm | — | Not in release | Not affected | Not affected | Not affected |
| linux-oem | — | Not in release | Not in release | Not in release | Not affected |
| qemu | — | Not affected | Not affected | Not affected | Fixed |
| linux-hwe-edge | — | Not in release | Not in release | Not in release | Not affected |
| linux-lts-trusty | — | — | — | — | Not in release |
| linux-maguro | — | — | — | — | Not in release |
| qemu-kvm | — | — | — | — | Not in release |
| webkit2gtk | — | Not affected | Not affected | Not affected | Not affected |
| linux-hwe-5.4 | — | Not in release | Not in release | Not in release | Not affected |
| linux-hwe-5.15 | — | Not in release | Not in release | Not affected | Not in release |
| linux-hwe-6.8 | — | Not in release | Not affected | Not in release | Not in release |
| linux-aws-5.4 | — | Not in release | Not in release | Not in release | Not affected |
| linux-aws-5.15 | — | Not in release | Not in release | Not affected | Not in release |
| linux-aws-hwe | — | Not in release | Not in release | Not in release | Not in release |
| linux-azure-4.15 | — | Not in release | Not in release | Not in release | Not affected |
| linux-azure-5.4 | — | Not in release | Not in release | Not in release | Not affected |
| linux-azure-5.15 | — | Not in release | Not in release | Not affected | Not in release |
| linux-azure-fde | — | Not affected | Not affected | Ignored | Not in release |
| linux-azure-fde-5.15 | — | Not in release | Not in release | Not affected | Not in release |
| linux-bluefield | — | Not in release | Not in release | Not affected | Not in release |
| linux-fips | — | Not in release | Not affected | Not affected | Not affected |
| linux-aws-fips | — | Not in release | Not affected | Not affected | Not affected |
| linux-azure-fips | — | Not in release | Not affected | Not affected | Not affected |
| linux-gcp-fips | — | Not in release | Not affected | Not affected | Not affected |
| linux-gcp-4.15 | — | Not in release | Not in release | Not in release | Not affected |
| linux-gcp-5.4 | — | Not in release | Not in release | Not in release | Not affected |
| linux-gcp-5.15 | — | Not in release | Not in release | Not affected | Not in release |
| linux-gkeop | — | Not affected | Not affected | Not affected | Not in release |
| linux-gkeop-5.15 | — | Not in release | Not in release | Not affected | Not in release |
| linux-ibm | — | Not affected | Not affected | Not affected | Not in release |
| linux-ibm-5.4 | — | Not in release | Not in release | Not in release | Not affected |
| linux-ibm-5.15 | — | Not in release | Not in release | Not affected | Not in release |
| linux-intel | — | Not affected | Not in release | Not in release | Not in release |
| linux-intel-iotg | — | Not in release | Not affected | Not in release | Not in release |
| linux-intel-iotg-5.15 | — | Not in release | Not in release | Not affected | Not in release |
| linux-iot | — | Not in release | Not in release | Not affected | Not in release |
| linux-intel-iot-realtime | — | Not in release | Not affected | Not in release | Not in release |
| linux-lowlatency | — | Not affected | Not affected | Not in release | Not in release |
| linux-lowlatency-hwe-5.15 | — | Not in release | Not in release | Not affected | Not in release |
| linux-lowlatency-hwe-6.8 | — | Not in release | Not affected | Not in release | Not in release |
| linux-nvidia | — | Not affected | Not affected | Not in release | Not in release |
| linux-nvidia-6.5 | — | Not in release | Not affected | Not in release | Not in release |
| linux-nvidia-6.8 | — | Not in release | Not affected | Not in release | Not in release |
| linux-nvidia-lowlatency | — | Not affected | Not in release | Not in release | Not in release |
| linux-oracle | — | Not affected | Not affected | Not affected | Not affected |
| linux-oracle-5.4 | — | Not in release | Not in release | Not in release | Not affected |
| linux-oracle-5.15 | — | Not in release | Not in release | Not affected | Not in release |
| linux-oem-6.8 | — | Not affected | Not in release | Not in release | Not in release |
| linux-raspi | — | Not affected | Not affected | Not affected | Not in release |
| linux-raspi-5.4 | — | Not in release | Not in release | Not in release | Not affected |
| linux-raspi-realtime | — | Not affected | Not in release | Not in release | Not in release |
| linux-realtime | — | Not affected | Not affected | Not in release | Not in release |
| linux-riscv | — | Not affected | Ignored | Ignored | Not in release |
| linux-riscv-5.15 | — | Not in release | Not in release | Not affected | Not in release |
| linux-riscv-6.8 | — | Not in release | Not affected | Not in release | Not in release |
| linux-xilinx-zynqmp | — | Not in release | Not affected | Not affected | Not in release |
| linux-aws-6.8 | — | Not in release | Not affected | Not in release | Not in release |
| linux-gcp-6.8 | — | Not in release | Not affected | Not in release | Not in release |
| linux-oracle-6.8 | — | Not in release | Not affected | Not in release | Not in release |
| linux-azure-6.8 | — | Not in release | Not affected | Not in release | Not in release |
| linux-oem-6.11 | — | Not affected | Not in release | Not in release | Not in release |
The AMD Ryzen processor with AGESA microcode through 2017-01-27 allows local users to cause a denial of service (system hang) via an application that makes a long series of FMA3 instructions, as demonstrated by the Flops test suite.
1 affected package
amd64-microcode
| Package | 26.04 LTS | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|---|
| amd64-microcode | — | — | — | — | — |