Red Hat Security AdvisoryRHSA-2021:3766
kernel security update
Released 2021-10-12 · Red Hat rating Important · View on Red Hat →
Fixed in
- Red Hat Enterprise Linux Server AUS (v. 7.3) kernel-3.10.0-514.93.1.el7, kernel-abi-whitelists-3.10.0-514.93.1.el7, kernel-debug-3.10.0-514.93.1.el7 +7
- Red Hat Enterprise Linux Server Optional AUS (v. 7.3) kernel-tools-libs-devel-3.10.0-514.93.1.el7
Fixes 2 records
Priority LOW 39
An issue was discovered in Linux: KVM through Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks and can lead to pages being freed while still accessible by the VMM and guest.
CVSS 4.0HIGH 8.7· Local · Low privileges · No interaction · EPSS 0.0066 · Published 2021-05-26 · Partial fix CWE-119
Priority LOW 35
arch/powerpc/kvm/book3s_rtas.c in the Linux kernel through 5.13.5 on the powerpc platform allows KVM guest OS users to cause host OS memory corruption via rtas_args.nargs, aka CID-f62f3c20647e.
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00575 · Published 2021-07-26 · Partial fix CWE-787
