|
 |
|
KVM Multiple Vulnerabilities
|
|
|
|
|
Secunia Advisory:
|
SA29129
|
|
|
Release Date:
|
2008-02-26
|
|
Last Update:
|
2008-05-08
|
|
|
Critical:
|
Moderately critical
|
|
Impact:
|
Security Bypass
DoS
|
|
Where:
|
Local system
|
|
Solution Status:
|
Unpatched
|
|
| Software: | KVM (Kernel-based Virtual Machine)
|
| | CVE reference: | CVE-2007-1320 (Secunia mirror)
CVE-2007-1321 (Secunia mirror)
CVE-2007-1322 (Secunia mirror)
CVE-2007-1323 (Secunia mirror)
CVE-2007-1366 (Secunia mirror)
CVE-2007-5729 (Secunia mirror)
CVE-2007-5730 (Secunia mirror)
CVE-2007-6227 (Secunia mirror)
CVE-2008-0928 (Secunia mirror)
CVE-2008-2004 (Secunia mirror)
|
|
|
This advisory is currently marked as unpatched!
- Companies can be alerted when a patch is released! |
|
|
Description:
Some vulnerabilities have been reported in KVM, which can be exploited by malicious, local users to bypass certain security restrictions or cause a DoS (Denial of Service).
1) The block device backends do not properly check a guest's read or write attempts, which can be exploited out of a KVM guest system to e.g. crash the KVM host or potentially escape the virtualisation jail by writing into arbitrary host memory.
Note: Successful exploitation requires privileges to send specially crafted read or write requests to the block device backends.
This is related to vulnerability #7 in:
SA25073
2) Several vulnerabilities can be exploited by malicious, local users to bypass certain security restrictions or cause a DoS (Denial of Service).
For more information see vulnerabilities #1-#6 in:
SA25073
3) An error can be exploited by a guest to read arbitrary files on the host via a specially crafted disk header.
For more information:
SA30111
Solution:
Restrict access to trusted users only.
Provided and/or discovered by:
1) Ian Jackson
2, 3) Reported in KVM by Jamie Strandboge via a Debian bug report.
Changelog:
2008-05-08: Added vulnerabilities #2 and #3 to the advisory. Updated credits and the "Original Advisory" section. Added CVE references and increased criticality.
Original Advisory:
1) http://marc.info/?l=debian-security&m=120343592917055&w=2
2, 3) http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=480011
Other References:
SA25073:
http://secunia.com/advisories/25073/
SA30111:
http://secunia.com/advisories/30111/
|
|
|
|
|
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.
|
|
|
|
1 Related Secunia Security Advisories
|
|
|
1. Fedora update for kvm
|
|
|
Send Feedback to Secunia
|
|
If you have new information regarding this Secunia advisory or a product in our database, please send it to us using either our web form or email us at vuln@secunia.com.
Ideas, suggestions, and other feedback are most welcome.
|
|
|
|
|
|
Secunia PSI
Scan | Patch | Track
Free Download
|
|
|
Secunia Poll
|
|
|
|
|
 |
|
|
Most Popular Advisories
|
|
|
|
|
|
