Description: M. Shirk has discovered a vulnerability in BrightStor ARCserve Backup, which can be exploited by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to a NULL pointer dereference error when handling TADDR2UADDR (0x08) request types within the CA Remote Procedure Call Server service (CATIRPC.EXE). This can be exploited to crash the service by sending a specially crafted packet to port 111/UDP.
The vulnerability is confirmed in version r11.5 SP2. Other versions may also be affected.
Solution: Apply patches. Please see the vendor's advisory for details.
Provided and/or discovered by: M. Shirk
Changelog: 2007-02-09: Added CVE reference.
2007-03-16: Updated "Solution" section. Added link to the vendor's advisory.
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