Advisories MDVSA-2009:329: kernel

[paul]

Some vulnerabilities were discovered and corrected in the Linux

2.6 kernel:

 

Memory leak in the appletalk subsystem in the Linux kernel 2.4.x

through 2.4.37.6 and 2.6.x through 2.6.31, when the appletalk and

ipddp modules are loaded but the ipddpN device is not found, allows

remote attackers to cause a denial of service (memory consumption)

via IP-DDP datagrams. (CVE-2009-2903)

 

Multiple race conditions in fs/pipe.c in the Linux kernel before

2.6.32-rc6 allow local users to cause a denial of service (NULL pointer

dereference and system crash) or gain privileges by attempting to

open an anonymous pipe via a /proc/*/fd/ pathname. (CVE-2009-3547)

 

The tcf_fill_node function in net/sched/cls_api.c in the netlink

subsystem in the Linux kernel 2.6.x before 2.6.32-rc5, and 2.4.37.6

and earlier, does not initialize a certain tcm__pad2 structure member,

which might allow local users to obtain sensitive information from

kernel memory via unspecified vectors. NOTE: this issue exists

because of an incomplete fix for CVE-2005-4881. (CVE-2009-3612)

 

net/unix/af_unix.c in the Linux kernel 2.6.31.4 and earlier allows

local users to cause a denial of service (system hang) by creating an

abstract-namespace AF_UNIX listening socket, performing a shutdown

operation on this socket, and then performing a series of connect

operations to this socket. (CVE-2009-3621)

 

Integer overflow in the kvm_dev_ioctl_get_supported_cpuid function

in arch/x86/kvm/x86.c in the KVM subsystem in the Linux kernel

before 2.6.31.4 allows local users to have an unspecified impact

via a KVM_GET_SUPPORTED_CPUID request to the kvm_arch_dev_ioctl

function. (CVE-2009-3638)

 

The nfs4_proc_lock function in fs/nfs/nfs4proc.c in the NFSv4 client in

the Linux kernel before 2.6.31-rc4 allows remote NFS servers to cause

a denial of service (NULL pointer dereference and panic) by sending a

certain response containing incorrect file attributes, which trigger

attempted use of an open file that lacks NFSv4 state. (CVE-2009-3726)

 

The ip_frag_reasm function in ipv4/ip_fragment.c in Linux kernel

2.6.32-rc8, and possibly earlier versions, calls IP_INC_STATS_BH with

an incorrect argument, which allows remote attackers to cause a denial

of service (NULL pointer dereference and hang) via long IP packets,

possibly related to the ip_defrag function. (CVE-2009-1298)

 

To update your kernel, please follow the directions located at:

 

http://www.mandriva.com/en/security/kernelupdate