CVE-2012-3817: Input Validation
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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2012-3817?
CVE-2012-3817 is classified as a high severity vulnerability due to its potential to cause denial of service.
How do I fix CVE-2012-3817?
To fix CVE-2012-3817, upgrade to ISC BIND version 9.7.6-P2 or newer, or apply the appropriate patches.
Which versions of ISC BIND are affected by CVE-2012-3817?
CVE-2012-3817 affects ISC BIND versions 9.4.x through 9.9.0, with specific versions listed in the CVE description.
Can CVE-2012-3817 be exploited remotely?
Yes, CVE-2012-3817 can be exploited remotely by attackers to cause denial of service.
Is DNSSEC validation related to CVE-2012-3817?
Yes, CVE-2012-3817 occurs when DNSSEC validation is enabled, highlighting the importance of proper configuration.