Nome do pacote
kernel
Data
2014-01-13
ID Alerta
MDVSA-2014:001
Versões afetadas
MBS1 x86_64

Descrição do problema

Multiple vulnerabilities has been found and corrected in the Linux
kernel:

The KVM subsystem in the Linux kernel through 3.12.5 allows local
users to gain privileges or cause a denial of service (system crash)
via a VAPIC synchronization operation involving a page-end address
(CVE-2013-6368).

The apic_get_tmcct function in arch/x86/kvm/lapic.c in the KVM
subsystem in the Linux kernel through 3.12.5 allows guest OS users
to cause a denial of service (divide-by-zero error and host OS crash)
via crafted modifications of the TMICT value (CVE-2013-6367).

Multiple buffer underflows in the XFS implementation in the
Linux kernel through 3.12.1 allow local users to cause a denial
of service (memory corruption) or possibly have unspecified
other impact by leveraging the CAP_SYS_ADMIN capability for a (1)
XFS_IOC_ATTRLIST_BY_HANDLE or (2) XFS_IOC_ATTRLIST_BY_HANDLE_32 ioctl
call with a crafted length value, related to the xfs_attrlist_by_handle
function in fs/xfs/xfs_ioctl.c and the xfs_compat_attrlist_by_handle
function in fs/xfs/xfs_ioctl32.c (CVE-2013-6382).

Array index error in the kvm_vm_ioctl_create_vcpu function in
virt/kvm/kvm_main.c in the KVM subsystem in the Linux kernel through
3.12.5 allows local users to gain privileges via a large id value
(CVE-2013-4587).

The mISDN_sock_recvmsg function in drivers/isdn/mISDN/socket.c in
the Linux kernel before 3.12.4 does not ensure that a certain length
value is consistent with the size of an associated data structure,
which allows local users to obtain sensitive information from kernel
memory via a (1) recvfrom, (2) recvmmsg, or (3) recvmsg system call
(CVE-2013-7266).

The atalk_recvmsg function in net/appletalk/ddp.c in the Linux kernel
before 3.12.4 updates a certain length value without ensuring that an
associated data structure has been initialized, which allows local
users to obtain sensitive information from kernel memory via a (1)
recvfrom, (2) recvmmsg, or (3) recvmsg system call (CVE-2013-7267).

The ipx_recvmsg function in net/ipx/af_ipx.c in the Linux kernel
before 3.12.4 updates a certain length value without ensuring that an
associated data structure has been initialized, which allows local
users to obtain sensitive information from kernel memory via a (1)
recvfrom, (2) recvmmsg, or (3) recvmsg system call (CVE-2013-7268).

The nr_recvmsg function in net/netrom/af_netrom.c in the Linux kernel
before 3.12.4 updates a certain length value without ensuring that an
associated data structure has been initialized, which allows local
users to obtain sensitive information from kernel memory via a (1)
recvfrom, (2) recvmmsg, or (3) recvmsg system call (CVE-2013-7269).

The packet_recvmsg function in net/packet/af_packet.c in the Linux
kernel before 3.12.4 updates a certain length value before ensuring
that an associated data structure has been initialized, which allows
local users to obtain sensitive information from kernel memory via a
(1) recvfrom, (2) recvmmsg, or (3) recvmsg system call (CVE-2013-7270).

The x25_recvmsg function in net/x25/af_x25.c in the Linux kernel
before 3.12.4 updates a certain length value without ensuring that an
associated data structure has been initialized, which allows local
users to obtain sensitive information from kernel memory via a (1)
recvfrom, (2) recvmmsg, or (3) recvmsg system call (CVE-2013-7271).

The Linux kernel before 3.12.4 updates certain length values before
ensuring that associated data structures have been initialized,
which allows local users to obtain sensitive information from kernel
stack memory via a (1) recvfrom, (2) recvmmsg, or (3) recvmsg system
call, related to net/ipv4/ping.c, net/ipv4/raw.c, net/ipv4/udp.c,
net/ipv6/raw.c, and net/ipv6/udp.c (CVE-2013-7263).

The l2tp_ip_recvmsg function in net/l2tp/l2tp_ip.c in the Linux kernel
before 3.12.4 updates a certain length value before ensuring that an
associated data structure has been initialized, which allows local
users to obtain sensitive information from kernel stack memory via a
(1) recvfrom, (2) recvmmsg, or (3) recvmsg system call (CVE-2013-7264).

The pn_recvmsg function in net/phonet/datagram.c in the Linux kernel
before 3.12.4 updates a certain length value before ensuring that an
associated data structure has been initialized, which allows local
users to obtain sensitive information from kernel stack memory via a
(1) recvfrom, (2) recvmmsg, or (3) recvmsg system call (CVE-2013-7265).

The dgram_recvmsg function in net/ieee802154/dgram.c in the Linux
kernel before 3.12.4 updates a certain length value without ensuring
that an associated data structure has been initialized, which
allows local users to obtain sensitive information from kernel stack
memory via a (1) recvfrom, (2) recvmmsg, or (3) recvmsg system call
(CVE-2013-7281).

The updated packages provides a solution for these security issues.

Pacotes atualizados

MBS1 x86_64

 051699d3c268cc801eb10227aabc7ce9  mbs1/x86_64/cpupower-3.4.76-1.1.mbs1.x86_64.rpm
 fca435c4c60e6fe5c5dea61823165e49  mbs1/x86_64/kernel-firmware-3.4.76-1.1.mbs1.noarch.rpm
 8c3a1763997ee018b49b3ba8538352d7  mbs1/x86_64/kernel-headers-3.4.76-1.1.mbs1.x86_64.rpm
 58a86c7c7595c38be2dd2972aed28afa  mbs1/x86_64/kernel-server-3.4.76-1.1.mbs1.x86_64.rpm
 092b6e29a942adaf4c1de69e8b87be13  mbs1/x86_64/kernel-server-devel-3.4.76-1.1.mbs1.x86_64.rpm
 c4738dd931e2884c746fa72eb9de6b2d  mbs1/x86_64/kernel-source-3.4.76-1.mbs1.noarch.rpm
 3002db6a04ed8d77c16a061e07c7089d  mbs1/x86_64/lib64cpupower0-3.4.76-1.1.mbs1.x86_64.rpm
 a6865ec18c0ab06c75812bdeaed298a4  mbs1/x86_64/lib64cpupower-devel-3.4.76-1.1.mbs1.x86_64.rpm
 cf6541d3af73b6833f5d040d7594b5b2  mbs1/x86_64/perf-3.4.76-1.1.mbs1.x86_64.rpm 
 c9f6db74a401275060ec3337de75f4c0  mbs1/SRPMS/cpupower-3.4.76-1.1.mbs1.src.rpm
 2973b683a9f34d0f99f5cb7364e4d750  mbs1/SRPMS/kernel-firmware-3.4.76-1.1.mbs1.src.rpm
 aff7f57d13968ba6489eee0bc02a239e  mbs1/SRPMS/kernel-headers-3.4.76-1.1.mbs1.src.rpm
 006b6c0aaaabb98602af18c41091b7fc  mbs1/SRPMS/kernel-server-3.4.76-1.1.mbs1.src.rpm
 3b29b2991cd2c7a20e17e04fa7f525d6  mbs1/SRPMS/kernel-source-3.4.76-1.mbs1.src.rpm
 347679134e61b66ea20d74ee68d2bd62  mbs1/SRPMS/perf-3.4.76-1.1.mbs1.src.rpm

Referências