5.8
Medium
CVE-2022-2196 A regression exists in the Linux Kernel within KVM: nVMX that allowed for speculative execution attacks. L2 can carry…
Description
A regression exists in the Linux Kernel within KVM: nVMX that allowed for speculative execution attacks. L2 can carry out Spectre v2 attacks on L1 due to L1 thinking it doesn't need retpolines or IBPB after running L2 due to KVM (L0) advertising eIBRS support to L1. An attacker at L2 with code execution can execute code on an indirect branch on the host machine. We recommend upgrading to Kernel 6.2 or applying the relevant stable backports (v5.4.233, v5.10.170, v5.15.96, v6.1.14).
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Kernel 6.2 | earliest → < 6.2.0 | 6.2.0 |
| Linux Kernel 5.16 | 5.16.0 → < 6.1.14 | 6.1.14 |
| Linux Kernel 5.11 | 5.11.0 → < 5.15.96 | 5.15.96 |
| Linux Kernel 5.8 | 5.8.0 → < 5.10.170 | 5.10.170 |
| Linux Kernel 5.7 | 5.7.3 → < 5.8.0 | 5.8.0 |
| Linux Kernel 5.6 | 5.6.19 → < 5.7.0 | 5.7.0 |
| Linux Kernel 5.4 | 5.4.47 → < 5.4.233 | 5.4.233 |
References
- kernel.dance kernel.dance
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
- lists.debian.org lists.debian.org
Timeline
- Published
- Last modified
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