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Linux Kernel Multiple Denial of Service Vulnerabilities
Secunia Advisory: SA16355
Release Date: 2005-08-09
Last Update: 2005-09-27
Popularity: 13,189 views

Critical:
Less critical
Impact: DoS
Where: From remote
Solution Status: Vendor Patch

OS:Linux Kernel 2.6.x

Secunia CVSS-2 Score: Available in Secunia business solutions

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Advisory Content (Page 1 of 3)[ 1 ] [ 2 ] [ 3 ]

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

1) An error within the handling of keyrings makes it possible to crash the kernel when destroying a keyring that wasn't properly instantiated. This can be exploited by attempting to add a keyring that doesn't have an empty payload.

2) An error within the error handling path for the "KEYCTL_JOIN_SESSION_KEYRING" operation when attempting to join a key management session may cause the session management semaphore to not be released. This can be exploited by attempting to add a new session keyring.

3) Some errors in the in-kernel zlib routines can be exploited to cause a DoS via specially crafted input.

4) An error in the driver for compressed ISO file systems can be exploited to crash the kernel when e.g. a malicious CD-ROM with a specially crafted compressed ISO image is mounted.

5) A array type error in the "ipt_recent.c" netfilter module when calling "memset()" on the "last_pkts" array may cause the kernel to crash via certain attacks. e.g. SSH brute force. This only affects 64-bit platforms.

Change Page:
[ 1 ] [ 2 ] [ 3 ]



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