Ubuntu Security Notice USN-974-2 August 26, 2010
linux regression
https://launchpad.net/bugs/620994
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A security issue affects the following Ubuntu releases:
Ubuntu 8.04 LTS
This advisory also applies to the corresponding versions of
Kubuntu, Edubuntu, and Xubuntu.
The problem can be corrected by upgrading your system to the
following package versions:
Ubuntu 8.04 LTS:
linux-image-2.6.24-28-386 2.6.24-28.77
linux-image-2.6.24-28-generic 2.6.24-28.77
linux-image-2.6.24-28-hppa32 2.6.24-28.77
linux-image-2.6.24-28-hppa64 2.6.24-28.77
linux-image-2.6.24-28-itanium 2.6.24-28.77
linux-image-2.6.24-28-lpia 2.6.24-28.77
linux-image-2.6.24-28-lpiacompat 2.6.24-28.77
linux-image-2.6.24-28-mckinley 2.6.24-28.77
linux-image-2.6.24-28-openvz 2.6.24-28.77
linux-image-2.6.24-28-powerpc 2.6.24-28.77
linux-image-2.6.24-28-powerpc-smp 2.6.24-28.77
linux-image-2.6.24-28-powerpc64-smp 2.6.24-28.77
linux-image-2.6.24-28-rt 2.6.24-28.77
linux-image-2.6.24-28-server 2.6.24-28.77
linux-image-2.6.24-28-sparc64 2.6.24-28.77
linux-image-2.6.24-28-sparc64-smp 2.6.24-28.77
linux-image-2.6.24-28-virtual 2.6.24-28.77
linux-image-2.6.24-28-xen 2.6.24-28.77
After a standard system update you need to reboot your computer to make
all the necessary changes.
Details follow:
USN-974-1 fixed vulnerabilities in the Linux kernel. The fixes for
CVE-2010-2240 caused failures for Xen hosts. This update fixes the
problem.
We apologize for the inconvenience.
Original advisory details:
Gael Delalleu, Rafal Wojtczuk, and Brad Spengler discovered that the memory
manager did not properly handle when applications grow stacks into adjacent
memory regions. A local attacker could exploit this to gain control of
certain applications, potentially leading to privilege escalation, as
demonstrated in attacks against the X server. (CVE-2010-2240)
Kees Cook discovered that under certain situations the ioctl subsystem for
DRM did not properly sanitize its arguments. A local attacker could exploit
this to read previously freed kernel memory, leading to a loss of privacy.
(CVE-2010-2803)
Ben Hawkes discovered an integer overflow in the Controller Area Network
(CAN) subsystem when setting up frame content and filtering certain
messages. An attacker could send specially crafted CAN traffic to crash the
system or gain root privileges. (CVE-2010-2959)