Linux Kernel Broadcom 5820 Cryptonet Driver Integer Overflow Vulnerability

BID:10599

Info

Linux Kernel Broadcom 5820 Cryptonet Driver Integer Overflow Vulnerability

Bugtraq ID: 10599
Class: Boundary Condition Error
CVE: CVE-2004-0619
Remote: No
Local: Yes
Published: Jun 23 2004 12:00AM
Updated: Jul 12 2009 05:16AM
Credit: Credit for discovery of this vulerability goes to [email protected]
Vulnerable: Redhat Linux 8.0 i686
Redhat Linux 8.0 i386
Redhat Linux 8.0
Redhat kernel-source-2.4.20-8.i386.rpm
+ Redhat Linux 9.0 i386
 Redhat kernel-smp-2.4.20-8.i686.rpm
+ Redhat Linux 9.0 i386
 Redhat kernel-smp-2.4.20-8.i586.rpm
Redhat kernel-smp-2.4.20-8.athlon.rpm
+ Redhat Linux 9.0 i386
 Redhat kernel-2.4.20-8.i686.rpm
+ Redhat Linux 9.0 i386
 Redhat kernel-2.4.20-8.i586.rpm
+ Redhat Linux 9.0 i386
 Redhat kernel-2.4.20-8.i386.rpm
Redhat kernel-2.4.20-8.athlon.rpm
+ Redhat Linux 9.0 i386
 Redhat Fedora Core1
Redhat Enterprise Linux WS 3
Redhat Enterprise Linux WS 2.1 IA64
Redhat Enterprise Linux WS 2.1
Redhat Enterprise Linux ES 3
Redhat Enterprise Linux ES 2.1 IA64
Redhat Enterprise Linux ES 2.1
Redhat Enterprise Linux AS 3
Redhat Enterprise Linux AS 2.1 IA64
Redhat Enterprise Linux AS 2.1
Redhat Desktop 3.0
Not Vulnerable:

Discussion

Linux Kernel Broadcom 5820 Cryptonet Driver Integer Overflow Vulnerability

It is reported that the bcm5820 Linux kernel driver contains an integer overflow vulnerability.

The driver contains a function ubsec_ioctl() which is used to setup operating parameters for the driver. This function takes user-supplied data and copies it into kernel-space. When copying this data, a user-supplied length value is used in a calculation. This calculation could cause an integer overflow when allocating buffer space.

This vulnerability could lead to a system crash, or possible code execution in the context of the kernel.

This driver is not present in the vanilla Linux kernel, nor is it standard in most distributions of Linux. Redhat 8, with Linux kernel 2.4.20 is confirmed to include the vulnerable driver, but others are also potentially vulnerable.

Exploit / POC

Linux Kernel Broadcom 5820 Cryptonet Driver Integer Overflow Vulnerability

Currently we are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.

Solution / Fix

Linux Kernel Broadcom 5820 Cryptonet Driver Integer Overflow Vulnerability

Solution:
Redhat has released advisory FEDORA-2004-206 for Fedora Core 1 addressing this issue. Please see the referenced advisory for further information.

RedHat Linux has released advisory RHSA-2004:549-10 to address this, and other issues in RedHat Enterprise Linux operating systems. Please see the referenced advisories for further information.

Red Hat released advisory RHSA-2005:283-15 as well as fixes to address this and other issues on Red Hat Linux Enterprise 2.1 platforms. Customers who are affected by this issue are advised to apply the appropriate updates. Customers subscribed to the Red Hat Network may apply the appropriate fixes using the Red Hat Update Agent (up2date). Please see referenced advisories for additional information.


Redhat Fedora Core1

References

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