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Linux Kernel Multiple Denial of Service Vulnerabilities
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Secunia Advisory:
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SA17786
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Release Date:
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2005-11-29
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Last Update:
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2005-12-23
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Popularity:
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12,691 views
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Critical:
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Not critical
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Impact:
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DoS
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Where:
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Local system
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Solution Status:
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Vendor Patch
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| OS: | Linux Kernel 2.6.x
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Secunia CVSS-2 Score:
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| Advisory Content (Page 1 of 3) | [ 1 ] [ 2 ] [ 3 ] | |
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Description:
Some vulnerabilities have been reported in the Linux Kernel, which potentially can be exploited by malicious, local users to cause a DoS (Denial of Service).
1) An error in the auto-reap of child processes that have ptrace attached can lead to dangling ptrace references. This may be exploited by local users to cause a kernel crash.
2) The use of "printk()" in the "time_out_leases()" function in "/fs/locks.c" can consume a large amount of kernel log space. This can be exploited by local users to cause a DoS by generating a large number of broken leases.
3) A memory leak error exists in the VFS file lease handling code in "/fs/locks.c". This may be exploited by local users to cause a DoS (memory exhaustion) by performing certain Samba requests that causes an "fasync" entry to be re-allocated by the "fcntl_setlease()" function after the "fasync" queue has already been cleaned by the "locks_delete_lock()" function.
4) An integer overflow error exists in the "invalidate_inode_pages2_range()" function of "/mm/truncate.c". This can be exploited by local users to cause a DoS.
The vulnerabilities have been reported in the 2.6 kernel branch.
Change Page:
[ 1 ] [ 2 ] [ 3 ]
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