Поиск уязвимостей

Уязвимость подсистемы виртуализации Kernel-based Virtual Machine (KVM) ядра операционной системы Linux, позволяющая нарушителю получить несанкционированный доступ и повысить свои привилегии

ALT-PU-2023-1566: package `kernel-image-centos` update to version 5.14.0.295-alt1.el9

ALT-PU-2023-1346: package `kernel-image-std-def` update to version 5.15.96-alt1

ALT-PU-2023-1344: package `kernel-image-un-def` update to version 6.1.14-alt1

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).

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).

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).

A regression exists in the Linux Kernel within KVM: nVMX that allowed ...

ALT-PU-2023-1373: package `kernel-image-std-def` update to version 5.10.170-alt1

ALT-PU-2023-1409: package `kernel-image-std-kvm` update to version 5.10.172-alt1

ALT-PU-2023-1372: package `kernel-image-un-def` update to version 5.15.96-alt1

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 past commit 2e7eab81425a

ELSA-2023-12226: Unbreakable Enterprise kernel security update (IMPORTANT)

ELSA-2023-12256: Unbreakable Enterprise kernel-container security update (IMPORTANT)

ELSA-2023-12255: Unbreakable Enterprise kernel security update (IMPORTANT)

ALT-PU-2023-1503: package `kernel-image-rt` update to version 5.10.175-alt1.rt84

ALT-PU-2023-1497: package `kernel-image-rt` update to version 5.10.175-alt1.rt84

ALT-PU-2023-1407: package `kernel-image-mp` update to version 6.1.16-alt1

Security update for the Linux Kernel