RHSA-2006:0579 - Security Advisory

Topic

Updated kernel packages that fix a number of security issues as well as
other bugs are now available for Red Hat Enterprise Linux 2.1 (32 bit
architectures)

This security advisory has been rated as having important security impact
by the Red Hat Security Response Team.

Description

The Linux kernel handles the basic functions of the operating system.

These new kernel packages contain fixes for the security issues described
below:

• a flaw in the USB devio handling of device removal that allowed a local

user to cause a denial of service (crash) (CVE-2005-3055, moderate)

• a flaw in ROSE due to missing verification of the ndigis argument of new

routes (CVE-2005-3273, moderate)

• an info leak on AMD-based x86 systems that allowed a local user to

retrieve the floating point exception state of a process run by a different
user (CVE-2006-1056, important)

• a minor info leak in socket name handling in the network code

(CVE-2006-1342, low)

• a minor info leak in socket option handling in the network code

(CVE-2006-1343, low)

• a directory traversal vulnerability in smbfs that allowed a local user to

escape chroot restrictions for an SMB-mounted filesystem via "..\\"
sequences (CVE-2006-1864, moderate)

• a flaw in the mprotect system call that allowed to give write permission

to a readonly attachment of shared memory (CVE-2006-2071, moderate)

A performance bug in the NFS implementation that caused clients to
frequently pause when sending TCP segments during heavy write loads was
also addressed.

All Red Hat Enterprise Linux 2.1 users are advised to upgrade their kernels
to these updated packages, which contain backported fixes to correct these
issues.

Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

This update is available via Red Hat Network. To use Red Hat Network,
launch the Red Hat Update Agent with the following command:

up2date

This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.

Affected Products

• Red Hat Enterprise Linux Server 2 i386
• Red Hat Enterprise Linux Workstation 2 i386

Fixes

• BZ - 155362 - CVE-2005-3273 ROSE ndigis verification
• BZ - 169262 - CVE-2005-3055 async usb devio oops
• BZ - 186245 - CVE-2006-1342 Small information leak in SO_ORIGINAL_DST and getname() (CVE-2006-1343)
• BZ - 189344 - CVE-2006-1056 FPU Information leak on i386/x86-64 on AMD CPUs
• BZ - 189438 - CVE-2006-1864 smbfs chroot issue
• BZ - 190076 - CVE-2006-2071 mprotect gives write permission to a readonly attachment

CVEs

• CVE-2005-3055
• CVE-2006-1342
• CVE-2006-1343
• CVE-2006-2071
• CVE-2006-1056
• CVE-2006-1864
• CVE-2005-3273

References

(none)