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Linux Kernel 2.4 Multiple Vulnerabilities

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Release Date:  2009-03-23    Last Update:  2009-04-27    Views:  4,575

Secunia Advisory SA34432

Where:

From local network

Impact:

Security Bypass, Exposure of sensitive information, DoS

Solution Status:

Vendor Patch

Operating System:

CVE Reference(s):

Description


A weakness, security issues, and vulnerabilities have been reported in the Linux Kernel, which can be exploited by malicious, local users to bypass certain security restrictions, disclose potentially sensitive information, and cause a DoS (Denial of Service), and by malicious users to bypass certain security restrictions.

1) A security issue is caused due to CAP_FS_MASK not including the CAP_MKNOD and CAP_LINUX_IMMUTABLE capabilities, which can be exploited to e.g. create device nodes.

2) A weakness when processing the signals sent by a child process can be exploited to e.g. kill a parent process with higher privileges.

For more information:
SA34033

3) A security issue is caused due to the "exit_notify()" function in kernel/exit.c incorrectly checking for the "CAP_KILL" capability.

4) Some security issues are caused due to integer overflows, which can be exploited to disclose potentially sensitive information via an overly large length value.

For more information about security issues #3 and #4:
SA34614

5) A vulnerability is caused due to "sendmsg()" not correctly blocking while the UNIX garbage collector is running.

For more information:
SA32913


Solution:
Update to version 2.4.37.1.

Provided and/or discovered by:
1) Igor Zhbanov

Original Advisory:
http://kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.37.1

1) http://thread.gmane.org/gmane.linux.kernel/805280

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 2.4 Multiple Vulnerabilities

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