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CVE-2017-15306

Status Candidate

Overview

The kvm_vm_ioctl_check_extension function in arch/powerpc/kvm/powerpc.c in the Linux kernel before 4.13.11 allows local users to cause a denial of service (NULL pointer dereference and system crash) via a KVM_CHECK_EXTENSION KVM_CAP_PPC_HTM ioctl call to /dev/kvm.

Related Files

Ubuntu Security Notice USN-3507-2
Posted Dec 9, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3507-2 - Mohamed Ghannam discovered that a use-after-free vulnerability existed in the Netlink subsystem in the Linux kernel. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that the Linux kernel did not properly handle copy-on- write of transparent huge pages. A local attacker could use this to cause a denial of service or possibly gain administrative privileges. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2017-1000405, CVE-2017-12193, CVE-2017-15299, CVE-2017-15306, CVE-2017-15951, CVE-2017-16939
SHA-256 | ae388e8ac7bb58cd9abd9b333a0f2f4254cfb0c1fcd650c24b3063f016090fb0
Ubuntu Security Notice USN-3507-1
Posted Dec 7, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3507-1 - Mohamed Ghannam discovered that a use-after-free vulnerability existed in the Netlink subsystem in the Linux kernel. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that the Linux kernel did not properly handle copy-on- write of transparent huge pages. A local attacker could use this to cause a denial of service or possibly gain administrative privileges. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2017-1000405, CVE-2017-12193, CVE-2017-15299, CVE-2017-15306, CVE-2017-15951, CVE-2017-16535, CVE-2017-16643, CVE-2017-16939
SHA-256 | 69cb8bd23eccd5b890d722fba3cdc82d3096243ff4f4b5537c3e96d1b5de40da
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