|
Linux Kernel Various Vulnerabilities
|
|
Secunia Advisory:
|
SA23361
|
|
|
Release Date:
|
2006-12-14
|
|
Last Update:
|
2007-01-10
|
|
Popularity:
|
12,577 views
|
|
|
Critical:
|
 Less critical
|
|
Impact:
|
DoS
|
|
Where:
|
From local network
|
|
Solution Status:
|
Partial Fix
|
|
| OS: | Linux Kernel 2.6.x
|
|
|
Subscribe:
|
Instant alerts on relevant vulnerabilities
|
| | CVE reference: | CVE-2006-5158 CVE-2006-5173 CVE-2006-5648 CVE-2006-5649 CVE-2006-5701 CVE-2006-5871 CVE-2006-5755
|
|
Description: Some vulnerabilities have been reported within the Linux kernel, which can be exploited by malicious, local users and malicious people to cause a DoS (Denial of Service).
1) An error within the "nlmclnt_mark_reclaim()" function in clntlock.c of the NFS lockd can be exploited by malicious people to cause a DoS by crashing the service.
2) The task switching implementation fails to save and restore EFLAGS of process correctly. This can be exploited by malicious, local users to crash applications and services by invoking a specially crafted executable.
3) An error within the lock handling of the "sys_get_robust_list()" and "sys_set_robust_list()" system calls for the SPARC and PowerPC platforms can be exploited by malicious, local users to e.g. consume all system resources, create unkillable processes, and render a system unrebootable.
4) Problems within the alignment exception handling on SPARC and PowerPC platforms can be exploited by malicious, local users to cause a kernel crash.
5) An error within the implementation of the squashfs file system can be exploited to cause a DoS by mounting a specially crafted squashfs image and performing a read operation on the mounted file system.
6) If UNIX extensions are enabled, certain smbfs mount options are ignored and a client silently mounts shares using the uid, gid and mode options from the server.
Solution: Restrict access to trusted users only.
Provided and/or discovered by: 1) Matthias Andree
3, 4) Fabio Massimo Di Nitto
5) LMH
6) Bill Allombert
Changelog: 2007-01-10: Added CVE reference.
Original Advisory: http://www.ubuntu.com/usn/usn-395-1
http://www.us.debian.org/security/2006/dsa-1233
Other References: http://kernel.org/git/?p=linux/kernel...5c6fa0e204a2b63309c648bb2fde36836c826
http://www.kernel.org/git/?p=linux/ke...b1f5bf9dcdb6f23abf65977a675eb4deba3c0
|
|
|
Track this Secunia Advisory
|
Customers of the Secunia Vulnerability Intelligence solutions will automatically receive updates when new information regarding this advisory is released.
Read more about our Vulnerability Intelligence solutions and what they can do for you and your company.
|
|
|
About this Secunia Advisory
|
Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
|
|
|
8th Jan, 2009
|
New advisories:
|
24 |
|
New vulnerabilities:
|
99 |
|
Updated advisories:
|
26 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Solutions | More...
|
|