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CVE-2012-4542

Status Candidate

Overview

block/scsi_ioctl.c in the Linux kernel through 3.8 does not properly consider the SCSI device class during authorization of SCSI commands, which allows local users to bypass intended access restrictions via an SG_IO ioctl call that leverages overlapping opcodes.

Related Files

Red Hat Security Advisory 2013-0928-01
Posted Jun 11, 2013
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2013-0928-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. A flaw was found in the way the vhost kernel module handled descriptors that spanned multiple regions. A privileged guest user in a KVM guest could use this flaw to crash the host or, potentially, escalate their privileges on the host.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2012-4542, CVE-2013-0311, CVE-2013-1767, CVE-2013-1773, CVE-2013-1796, CVE-2013-1797, CVE-2013-1798, CVE-2013-1848
SHA-256 | 1ad26616fc364b191167c6388801cd7215206c00055b03e985d94de46d251e6a
Red Hat Security Advisory 2013-0882-01
Posted May 31, 2013
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2013-0882-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. A flaw was found in the way the vhost kernel module handled descriptors that spanned multiple regions. A privileged guest user in a KVM guest could use this flaw to crash the host or, potentially, escalate their privileges on the host.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2012-4461, CVE-2012-4542, CVE-2013-0311, CVE-2013-1767
SHA-256 | 43d73db1f21655d27f27accef38ee47638229ca88b3abd0e8748d5cc1d891f5d
Red Hat Security Advisory 2013-0622-01
Posted Mar 11, 2013
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2013-0622-01 - The kernel-rt packages contain the Linux kernel, the core of any Linux operating system. A flaw was found in the way file permission checks for the "/dev/cpu/[x]/msr" files were performed in restricted root environments. A local user with the ability to write to these files could use this flaw to escalate their privileges to kernel level, for example, by writing to the SYSENTER_EIP_MSR register.

tags | advisory, kernel, local, root
systems | linux, redhat
advisories | CVE-2012-4542, CVE-2013-0268, CVE-2013-0290, CVE-2013-0871, CVE-2013-1763
SHA-256 | 7b4d8f9b0aedc3ba78789f88554003b14e864d9333c5630695e6d2130b83ca4f
Red Hat Security Advisory 2013-0579-01
Posted Mar 1, 2013
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2013-0579-01 - The rhev-hypervisor6 package provides a Red Hat Enterprise Virtualization Hypervisor ISO disk image. The Red Hat Enterprise Virtualization Hypervisor is a dedicated Kernel-based Virtual Machine hypervisor. It includes everything necessary to run and manage virtual machines: A subset of the Red Hat Enterprise Linux operating environment and the Red Hat Enterprise Virtualization Agent. Note: Red Hat Enterprise Virtualization Hypervisor is only available for the Intel 64 and AMD64 architectures with virtualization extensions. A flaw was found in the way the vhost kernel module handled descriptors that spanned multiple regions. A privileged guest user could use this flaw to crash the host or, potentially, escalate their privileges on the host.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2012-3411, CVE-2012-4542, CVE-2013-0311
SHA-256 | 07b3be05c32276a8368c1cdb50a625aa7b0ac9df2f22b1741885f260c9ffa053
Red Hat Security Advisory 2013-0496-02
Posted Feb 21, 2013
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2013-0496-02 - The kernel packages contain the Linux kernel, the core of any Linux operating system. A race condition was found in the way asynchronous I/O and fallocate() interacted when using the ext4 file system. A local, unprivileged user could use this flaw to expose random data from an extent whose data blocks have not yet been written, and thus contain data from a deleted file.

tags | advisory, kernel, local
systems | linux, redhat
advisories | CVE-2012-4508, CVE-2012-4542, CVE-2013-0190, CVE-2013-0309, CVE-2013-0310, CVE-2013-0311
SHA-256 | 3a925a69e9ed312b981ff3a349917d1490658caff3fcba8bf43104f107a6da83
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