The futex_lock_pi function in kernel/futex.c in the Linux kernel before 2.6.33-rc7 does not properly manage a certain reference count, which allows local users to cause a denial of service (OOPS) via vectors involving an unmount of an ext3 filesystem.

Some vulnerabilities were discovered and corrected in the Linux 2.6 kernel :

The ATI Rage 128 (aka r128) driver in the Linux kernel before 2.6.31-git11 does not properly verify Concurrent Command Engine (CCE) state initialization, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly gain privileges via unspecified ioctl calls. (CVE-2009-3620)

fs/namei.c in Linux kernel 2.6.18 through 2.6.34 does not always follow NFS automount symlinks, which allows attackers to have an unknown impact, related to LOOKUP_FOLLOW. (CVE-2010-1088)

The wake_futex_pi function in kernel/futex.c in the Linux kernel before 2.6.33-rc7 does not properly handle certain unlock operations for a Priority Inheritance (PI) futex, which allows local users to cause a denial of service (OOPS) and possibly have unspecified other impact via vectors involving modification of the futex value from user space. (CVE-2010-0622)

drivers/connector/connector.c in the Linux kernel before 2.6.32.8 allows local users to cause a denial of service (memory consumption and system crash) by sending the kernel many NETLINK_CONNECTOR messages. (CVE-2010-0410)

The futex_lock_pi function in kernel/futex.c in the Linux kernel before 2.6.33-rc7 does not properly manage a certain reference count, which allows local users to cause a denial of service (OOPS) via vectors involving an unmount of an ext3 filesystem. (CVE-2010-0623)

Aditionally, the kernel was updated to the 2.6.31.13 stable release, it was added support for Cirrus Logic CS420x HDA codec, Wacom driver was updated to version 0.8.5-12 and there is a fix in the driver for backlight on Eee PC 1201HA.

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

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

This update of the openSUSE 11.2 kernel contains a lot of bug and security fixes.

Following security issues were fixed: CVE-2010-0622: The wake_futex_pi function in kernel/futex.c in the Linux kernel does not properly handle certain unlock operations for a Priority Inheritance (PI) futex, which allows local users to cause a denial of service (OOPS) and possibly have unspecified other impact via vectors involving modification of the futex value from user space.

CVE-2010-0623: The futex_lock_pi function in kernel/futex.c in the Linux kernel does not properly manage a certain reference count, which allows local users to cause a denial of service (OOPS) via vectors involving an unmount of an ext3 filesystem.

CVE-2010-0415: The do_pages_move function in mm/migrate.c in the Linux kernel does not validate node values, which allows local users to read arbitrary kernel memory locations, cause a denial of service (OOPS), and possibly have unspecified other impact by specifying a node that is not part of the kernel's node set.

CVE-2010-0410: drivers/connector/connector.c in the Linux kernel allows local users to cause a denial of service (memory consumption and system crash) by sending the kernel many NETLINK_CONNECTOR messages.

CVE-2009-4031: The do_insn_fetch function in arch/x86/kvm/emulate.c in the x86 emulator in the KVM subsystem in the Linux kernel tries to interpret instructions that contain too many bytes to be valid, which allows guest OS users to cause a denial of service (increased scheduling latency) on the host OS via unspecified manipulations related to SMP support.

This update also contains a large rollup of fixes for the rt2860 and rt3090 wireless drivers from the mainline kernel.

Mathias Krause discovered that the Linux kernel did not correctly handle missing ELF interpreters. A local attacker could exploit this to cause the system to crash, leading to a denial of service.
(CVE-2010-0307)

Marcelo Tosatti discovered that the Linux kernel's hardware virtualization did not correctly handle reading the /dev/port special device. A local attacker in a guest operating system could issue a specific read that would cause the host system to crash, leading to a denial of service. (CVE-2010-0309)

Sebastian Krahmer discovered that the Linux kernel did not correctly handle netlink connector messages. A local attacker could exploit this to consume kernel memory, leading to a denial of service.
(CVE-2010-0410)

Ramon de Carvalho Valle discovered that the Linux kernel did not correctly validate certain memory migration calls. A local attacker could exploit this to read arbitrary kernel memory or cause a system crash, leading to a denial of service. (CVE-2010-0415)

Jermome Marchand and Mikael Pettersson discovered that the Linux kernel did not correctly handle certain futex operations. A local attacker could exploit this to cause a system crash, leading to a denial of service. (CVE-2010-0622, CVE-2010-0623).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
48181	Mandriva Linux Security Advisory : kernel (MDVSA-2010:088)	Nessus	Mandriva Local Security Checks	medium
45128	openSUSE Security Update : kernel (kernel-2146)	Nessus	SuSE Local Security Checks	high
45081	Ubuntu 6.06 LTS / 8.04 LTS / 8.10 / 9.04 / 9.10 : linux, linux-source-2.6.15 vulnerabilities (USN-914-1)	Nessus	Ubuntu Local Security Checks	medium

Detections

Analytics

CVE-2010-0623

medium

Tenable Plugins

medium

high

medium