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TITLE:
Symantec Backup Exec Job Engine Denial of Service Vulnerabilities

SECUNIA ADVISORY ID:
SA26975

VERIFY ADVISORY:
http://secunia.com/advisories/26975/

CRITICAL:
Less critical

IMPACT:
DoS

WHERE:
>From local network

SOFTWARE:
Symantec Backup Exec for Windows Servers 11.x
http://secunia.com/product/14564/

DESCRIPTION:
Secunia Research has discovered some vulnerabilities in Symantec
Backup Exec for Windows Servers, which can be exploited by malicious
people to cause a DoS (Denial of Service).

1) A NULL-pointer dereference error in the Backup Exec Job Engine
service (bengine.exe) when handling exceptions can be exploited to
crash the service by sending a specially crafted packet to default
port 5633/TCP.

2) Two integer overflow errors within the Backup Exec Job Engine
service can be exploited to e.g. cause the service to enter an
infinite loop and exhaust all available memory or consume large
amounts of CPU resource by sending a specially crafted packet to
default port 5633/TCP.

The vulnerabilities are confirmed in Symantec Backup Exec for Windows
Servers version 11d build 11.0.7170 and also affect version 11d build
11.0.6.6235.

SOLUTION:
Apply hotfixes.

Build 11.0.6235:
http://support.veritas.com/docs/294241

Build 11.0.7170:
http://support.veritas.com/docs/294237

PROVIDED AND/OR DISCOVERED BY:
JJ Reyes, Secunia Research.

ORIGINAL ADVISORY:
SYM07-029
http://securityresponse.symantec.com/avcenter/security/Content/2007.11.27.html

Secunia Research:
http://secunia.com/secunia_research/2007-74/

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About:
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