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TITLE:
Symantec Products SAVRT.SYS Device Driver Privilege Escalation

SECUNIA ADVISORY ID:
SA22536

VERIFY ADVISORY:
http://secunia.com/advisories/22536/

CRITICAL:
Less critical

IMPACT:
Privilege escalation

WHERE:
Local system

SOFTWARE:
Symantec Client Security 2.x
http://secunia.com/product/3478/
Symantec Client Security 1.x
http://secunia.com/product/2344/
Symantec AntiVirus Corporate Edition 9.x
http://secunia.com/product/3549/
Symantec AntiVirus Corporate Edition 8.x
http://secunia.com/product/659/

DESCRIPTION:
A vulnerability has been reported in various Symantec products, which
can be exploited by malicious, local users to gain escalated
privileges.

The vulnerability is caused due to an improper validation of the
output buffer address space of a "DeviceIOControl()" call in the
SAVRT.SYS device driver.  This can be exploited to overwrite kernel
memory and execute arbitrary code with elevated privileges.

The vulnerability is reported in the following versions:
- Symantec AntiVirus Corporate Edition 8.1
- Symantec AntiVirus Corporate Edition 9.0.3 and earlier
- Symantec Client Security 1.1
- Symantec Client Security 2.0.3 and earlier

SOLUTION:
Update to a fixed version (see the vendor's advisory for details).

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Boon Seng Lim.

ORIGINAL ADVISORY:
Symantec:
http://www.symantec.com/avcenter/security/Content/2006.10.23.html

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About:
This Advisory was delivered by Secunia as a free service to help
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vulnerabilities.

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http://secunia.com/about_secunia_advisories/


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