BIND NULL rdata Field Processing Flaw Lets Remote Users Deny Service and Obtain Potentially Sensitive Information
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SecurityTracker Alert ID: 1027115 |
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SecurityTracker URL: http://securitytracker.com/id/1027115
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CVE Reference:
CVE-2012-1667
(Links to External Site)
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Date: Jun 4 2012
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Impact:
Denial of service via network, Disclosure of system information
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): 9.0.x - 9.6.x, 9.4-ESV - 9.4-ESV-R5-P1, 9.6-ESV - 9.6-ESV-R7, 9.7.0 - 9.7.6, 9.8.0 - 9.8.3, 9.9.0 - 9.9.1
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Description:
A vulnerability was reported in BIND. A remote user can cause denial of service conditions. A remote user can obtain potentially sensitive information.
When a DNS resource record rdata field is zero length, the server may crash or disclose potentially sensitive information.
On recursive servers, the server may crash or disclose some portion of memory.
On secondary servers, the server may crash on restart after transferring a zone containing affected records.
On master servers, the server may corrupt zone data if the zone option "auto-dnssec" is set to "maintain".
Dan Luther, Level3 Communications, reported this vulnerability.
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Impact:
A remote user can cause denial of service conditions.
A remote user can obtain potentially sensitive information.
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Solution:
The vendor has issued a fix (9.6-ESV-R7-P1, 9.7.6-P1, 9.8.3-P1, 9.9.1-P1).
The vendor's advisory is available at:
http://www.isc.org/software/bind/advisories/cve-2012-1667
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Vendor URL: www.isc.org/software/bind/advisories/cve-2012-1667 (Links to External Site)
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Cause:
Access control error, State error
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Underlying OS:
Linux (Any), UNIX (Any)
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Message History:
This archive entry has one or more follow-up message(s) listed below.
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Source Message Contents
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[Original Message Not Available for Viewing]
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