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Insecure Library Loading
Moderately critical

Linux Kernel Multiple Vulnerabilities

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Release Date:  2005-03-29    Last Update:  2005-04-14    Views:  24,556

Secunia Advisory SA14713

Where:

From remote

Impact:

Exposure of system information, Exposure of sensitive information, Privilege escalation, DoS, System access

Solution Status:

Vendor Patch

CVE Reference(s):

Description


Multiple vulnerabilities have been reported in the Linux kernel, which can be exploited to disclose information, cause a DoS (Denial of Service), gain escalated privileges, or potentially compromise a vulnerable system.

1) Some unspecified errors have been reported in the ISO9660 filesystem handler including Rock Ridge and Juliet extensions. These can be exploited via a specially crafted filesystem to cause a DoS or potentially corrupt memory leading to execution of arbitrary code.

2) A signedness error in the "bluez_sock_create()" function when creating bluetooth sockets can potentially be exploited to gain root privileges on a vulnerable system.

3) An information leak exists in the "ext2_make_empty()" function in the implementation of the ext2 filesystem when creating new directories. This can be exploited to disclose kernel memory.

4) An error in load_elf_library can be exploited to cause a DoS.

5) An error in the "fib_seq_start()" function can be exploited by malicious, local users to crash the system via /proc/net/route.


Solution:
Update to version 2.6.11.6.

Further details available to Secunia VIM customers

Provided and/or discovered by:
1) Michal Zalewski
2) Ilja van Sprundel
3) Mathieu Lafon and Romain Francoise, Arkoon Network Security.
4) Yichen Xie
5) Patrick McHardy

Original Advisory:
Kernel.org:
http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.11.5
http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.11.6
http://kernel.org/pub/linux/kernel/v2.4/testing/patch-2.4.30.log

Arkoon Network Security:
http://arkoon.net/advisories/ext2-make-empty-leak.txt

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Linux Kernel Multiple Vulnerabilities

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