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Secunia Network Software Inspector 2.0 (NSI) - Public Beta

The Public Beta has ended. Thanks to all that participated.

Learn more:
http://secunia.com/network_software_inspector_2/

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TITLE:
Linux Kernel Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA30044

VERIFY ADVISORY:
http://secunia.com/advisories/30044/

CRITICAL:
Less critical

IMPACT:
Privilege escalation, DoS

WHERE:
>From local network

REVISION:
2.0 originally posted 2008-05-02

OPERATING SYSTEM:
Linux Kernel 2.6.x
http://secunia.com/product/2719/

DESCRIPTION:
Some vulnerabilities have been reported in the Linux kernel, which
can be exploited by malicious people to cause a DoS (Denial of
Service), and by malicious, local users to cause a DoS or to
potentially gain escalated privileges.

1) A race condition error exists in the dnotify subsystem between
calls to "fcntl()" and "close()". This can be exploited to cause a
system crash or potentially gain root privileges.

2) A boundary error in the Tehuti network driver can be exploited to
corrupt kernel memory via specially crafted "BDX_OP_WRITE" IOCTL
calls.

The vulnerabilities are reported in versions prior to 2.6.25.1.

3) An error exists in the implementation of the IPsec protocol. This
can be exploited to crash an affected system via fragmented ESP
packets.

Successful exploitation of the vulnerability requires the ability to
manipulate network packets sent from an authenticated IPsec peer.

This vulnerability is reported in versions prior to 2.6.25.

SOLUTION:
Update to version 2.6.25.1.

PROVIDED AND/OR DISCOVERED BY:
1, 2) Reported by the vendor.
3) Dirk Nehring

CHANGELOG:
2008-05-07: Added vulnerability #3 to the advisory. Updated credits
and the "Original Advisory" section.

ORIGINAL ADVISORY:
Linux Kernel:
http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.25.1
http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.25

Dirk Nehring:
http://marc.info/?l=linux-netdev&m=120372380411259&w=2

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About:
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