BIND 8 Buffer Overflow in q_usedns Array Lets Remote Users Deny Service
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SecurityTracker Alert ID: 1012996
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SecurityTracker URL: http://securitytracker.com/id?1012996
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CVE Reference: CAN-2005-0033
(Links to External Site)
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Date: Jan 25 2005
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Impact: Denial of service via network
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Fix Available: Yes
Vendor Confirmed: Yes
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Version(s): 8.4.4 and 8.4.5 only
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Description: A vulnerability was reported in BIND 8. A remote user can cause denial of service conditions.
The vendor reported that a remote user can trigger a buffer overflow in the q_usedns array. The array is used to track nameservers and addresses that have been queried.
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Impact: A remote user can cause denial of service conditions.
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Solution: The vendor has issued a fixed version (8.4.6), available at:
http://www.isc.org/sw/bind/
As a workaround, the vendor indicates that you can disable recursion and glue fetching.
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Vendor URL: www.isc.org/ (Links to External Site)
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Cause: Boundary error
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Underlying OS: Linux (Any), UNIX (Any)
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Message History:
None.
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Source Message Contents
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Date: Tue, 25 Jan 2005 17:35:50 -0500
Subject: [none]
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Name: "BIND:
[Added 2005.25.01] Versions affected: BIND 8.4.4 and 8.4.5 *only*
Severity: LOW
Exploitable: Remotely
Type: Denial of Service
Description:
It is possible to overrun the q_usedns array which is used to track nameservers / addresses that have
been queried.
Workarounds:
Disable recursion and glue fetching.
Active Exploits:
None known
Fix:
Upgrade to BIND 8.4.6
http://www.isc.org/sw/bind/
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