CVE-2024-46707
In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Make ICC_*SGI*_EL1 undef in the absence of a vGICv3 On a system with a GICv3, if a guest hasn't been configured with GICv3 and that the host is not capable of GICv2…
Does this matter?
Lower severity and a low EPSS score (0.23%). Track it; it rarely justifies an emergency change on its own.
Description
In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Make ICC_*SGI*_EL1 undef in the absence of a vGICv3 On a system with a GICv3, if a guest hasn't been configured with GICv3 and that the host is not capable of GICv2 emulation, a write to any of the ICC_*SGI*_EL1 registers is trapped to EL2. We therefore try to emulate the SGI access, only to hit a NULL pointer as no private interrupt is allocated (no GIC, remember?). The obvious fix is to give the guest what it deserves, in the shape of a UNDEF exception.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.23% probability · 14th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/15818af2f7aa55eff375333cb7689df15d3f24efPatch
- https://git.kernel.org/stable/c/2073132f6ed3079369e857a8deb33d11bdd983bcPatch
- https://git.kernel.org/stable/c/3e6245ebe7ef341639e9a7e402b3ade8ad45a19fPatch
- https://git.kernel.org/stable/c/94d4fbad01b19ec5eab3d6b50aaec4f9db8b2d8dPatch
- https://git.kernel.org/stable/c/96b076e8ee5bc3a1126848c8add0f74bd30dc9d1Patch
- https://git.kernel.org/stable/c/9d7629bec5c3f80bd0e3bf8103c06a2f7046bd92Patch
- https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.