| Summary: | Kernel : ARM: KVM: NULL pointer dereferences (CVE-2013-5634) | ||
|---|---|---|---|
| Product: | Gentoo Security | Reporter: | Agostino Sarubbo <ago> |
| Component: | Kernel | Assignee: | Gentoo Kernel Security <security-kernel> |
| Status: | RESOLVED FIXED | ||
| Severity: | normal | CC: | kernel |
| Priority: | Normal | ||
| Version: | unspecified | ||
| Hardware: | All | ||
| OS: | Linux | ||
| URL: | http://www.openwall.com/lists/oss-security/2013/08/26/3 | ||
| Whiteboard: | |||
| Package list: | Runtime testing required: | --- | |
CVE-2013-5634 (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-5634): arch/arm/kvm/arm.c in the Linux kernel before 3.10 on the ARM platform, when KVM is used, allows host OS users to cause a denial of service (NULL pointer dereference, OOPS, and host OS crash) or possibly have unspecified other impact by omitting vCPU initialization before a KVM_GET_REG_LIST ioctl call. Fix in 3.10 onwards |
From ${URL} : Linux kernel built for the ARM(CONFIG_ARM) platform along with the Kernel based Virtual Machine support(CONFIG_KVM), is vulnerable to a NULL pointer dereference flaw. It occurs while performing an ioctl(KVM_GET_REG_LIST) call on the KVM device, without first properly initialising a vCPU. An unprivileged user/program could use this flaw to crash the kernel resulting in DoS. Upstream fix: - ------------- -> https://git.kernel.org/linus/e8180dcaa8470ceca21109f143876fdcd9fe050a