----------------------------------------------------------------------


Looking for a job?


Secunia is hiring skilled researchers and talented developers.


http://secunia.com/company/jobs/


----------------------------------------------------------------------

TITLE:
Red Hat update for kernel

SECUNIA ADVISORY ID:
SA39649

VERIFY ADVISORY:
http://secunia.com/advisories/39649/

DESCRIPTION:
Red Hat has issued an update for the kernel. This fixes a security
issue and multiple vulnerabilities, which can be exploited by
malicious, local users to cause a DoS (Denial of Service).

For more information:
SA38317
SA38354
SA38718

1) An error exists within the MMIO (Memory-mapped I/O) instruction
decoder of the Xen hypervisor. This can be exploited to e.g. cause a
guest system to crash if a guest userspace program tricks the
hypervisor into emulating a certain instruction.

Successful exploitation requires a 32bit system and access to an MMIO
region.

SOLUTION:
Updated packages are available via Red Hat Network.
http://rhn.redhat.com

PROVIDED AND/OR DISCOVERED BY:
1) Paolo Bonzini

ORIGINAL ADVISORY:
RHSA-2010:0398-1:
https://rhn.redhat.com/errata/RHSA-2010-0398.html

OTHER REFERENCES:
SA38317:
http://secunia.com/advisories/38317/

SA38354:
http://secunia.com/advisories/38354/

SA38718:
http://secunia.com/advisories/38718/

----------------------------------------------------------------------

About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/advisories/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

----------------------------------------------------------------------

Unsubscribe: Secunia Security Advisories
http://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org

----------------------------------------------------------------------