Several local vulnerabilities have been discovered in the Linux kernel
that may lead to a denial of service or the execution of arbitrary
code. The Common Vulnerabilities and Exposures project identifies the
following problems:
- CVE-2006-6058
LMH reported an issue in the minix filesystem that allows local users
with mount privileges to create a DoS (printk flood) by mounting a
specially crafted corrupt filesystem.
- CVE-2007-5966
Warren Togami discovered an issue in the hrtimer subsystem that allows
a local user to cause a DoS (soft lockup) by requesting a timer sleep
for a long period of time leading to an integer overflow.
- CVE-2007-6063
Venustech AD-LAB discovered a buffer overflow in the isdn ioctl
handling, exploitable by a local user.
- CVE-2007-6206
Blake Frantz discovered that when a core file owned by a non-root user
exists, and a root-owned process dumps core over it, the core file
retains its original ownership. This could be used by a local user to
gain access to sensitive information.
- CVE-2007-6417
Hugh Dickins discovered an issue in the tmpfs filesystem where, under
a rare circumstance, a kernel page may be improperly cleared, leaking
sensitive kernel memory to userspace or resulting in a DoS (crash).
These problems have been fixed in the stable distribution in version
2.6.18.dfsg.1-13etch6.
The following matrix lists additional packages that were rebuilt for
compatibility with or to take advantage of this update:
|
Debian 4.0 (etch) |
fai-kernels |
1.17+etch.13etch6 |
user-mode-linux |
2.6.18-1um-2etch.13etch6 |
We recommend that you upgrade your kernel package immediately and reboot
the machine. If you have built a custom kernel from the kernel source
package, you will need to rebuild to take advantage of these fixes.