Mandriva Linux Security Advisory : kernel (MDVSA-2009:118)
Medium Nessus Plugin ID 38845
SynopsisThe remote Mandriva Linux host is missing one or more security updates.
DescriptionSome vulnerabilities were discovered and corrected in the Linux 2.6 kernel :
The clone system call in the Linux kernel 2.6.28 and earlier allows local users to send arbitrary signals to a parent process from an unprivileged child process by launching an additional child process with the CLONE_PARENT flag, and then letting this new process exit.
fs/ecryptfs/inode.c in the eCryptfs subsystem in the Linux kernel before 184.108.40.206 allows local users to cause a denial of service (fault or memory corruption), or possibly have unspecified other impact, via a readlink call that results in an error, leading to use of a -1 return value as an array index. (CVE-2009-0269)
The audit_syscall_entry function in the Linux kernel 220.127.116.11 and earlier on the x86_64 platform does not properly handle (1) a 32-bit process making a 64-bit syscall or (2) a 64-bit process making a 32-bit syscall, which allows local users to bypass certain syscall audit configurations via crafted syscalls, a related issue to CVE-2009-0342 and CVE-2009-0343. (CVE-2009-0834)
The __secure_computing function in kernel/seccomp.c in the seccomp subsystem in the Linux kernel 18.104.22.168 and earlier on the x86_64 platform, when CONFIG_SECCOMP is enabled, does not properly handle (1) a 32-bit process making a 64-bit syscall or (2) a 64-bit process making a 32-bit syscall, which allows local users to bypass intended access restrictions via crafted syscalls that are misinterpreted as (a) stat or (b) chmod, a related issue to CVE-2009-0342 and CVE-2009-0343. (CVE-2009-0835)
The selinux_ip_postroute_iptables_compat function in security/selinux/hooks.c in the SELinux subsystem in the Linux kernel before 22.214.171.124, and 2.6.28.x before 126.96.36.199, when compat_net is enabled, omits calls to avc_has_perm for the (1) node and (2) port, which allows local users to bypass intended restrictions on network traffic. NOTE: this was incorrectly reported as an issue fixed in 188.8.131.52. (CVE-2009-1184)
Additionally, along with other things, this kernel update adds support for D-Link DWM 652 3.5G, some Intel gigabit network chipsets, Avermedia PCI pure analog (M135A), fixes a bug causing SQLite performance regression, and has some updated ALSA drivers. Check the package changelog for details.
To update your kernel, please follow the directions located at :
SolutionUpdate the affected packages.