Public Date:
842897: CVE-2012-3817 bind: heavy DNSSEC validation load can cause assertion failure

The MITRE CVE dictionary describes this issue as:

ISC BIND 9.4.x, 9.5.x, 9.6.x, and 9.7.x before 9.7.6-P2; 9.8.x before 9.8.3-P2; 9.9.x before 9.9.1-P2; and 9.6-ESV before 9.6-ESV-R7-P2, when DNSSEC validation is enabled, does not properly initialize the failing-query cache, which allows remote attackers to cause a denial of service (assertion failure and daemon exit) by sending many queries.

Find out more about CVE-2012-3817 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v2 metrics

Base Score 5
Base Metrics AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux 5 (bind97) RHSA-2012:1122 2012-07-31
Red Hat Enterprise Linux 5 (bind) RHSA-2012:1123 2012-07-31
Red Hat Enterprise Linux 6 (bind) RHSA-2012:1123 2012-07-31

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 4 bind Not affected
Red Hat Enterprise Linux 3 bind Not affected
Unless explicitly stated as not affected, all previous versions of packages in any minor update stream of a product listed here should be assumed vulnerable, although may not have been subject to full analysis.

External References

Last Modified

CVE description copyright © 2017, The MITRE Corporation