CVE Database


Impact: Important
Public: 2011-05-26
Bugzilla: 708301: CVE-2011-1910 bind: Large RRSIG RRsets and Negative Caching can crash named


The MITRE CVE dictionary describes this issue as:

Off-by-one error in named in ISC BIND 9.x before 9.7.3-P1, 9.8.x before 9.8.0-P2, 9.4-ESV before 9.4-ESV-R4-P1, and 9.6-ESV before 9.6-ESV-R4-P1 allows remote DNS servers to cause a denial of service (assertion failure and daemon exit) via a negative response containing large RRSIG RRsets.

Find out more about CVE-2011-1910 from the MITRE CVE dictionary and NIST NVD.


This issue did not affect bind packages shipped with Red Hat Enterprise Linux 4 and 5. It affected bind97 packages shipped with Red Hat Enterprise Linux 5 and bind packages shipped with Red Hat Enterprise Linux 6.

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 version 5 (bind97) RHSA-2011:0845 May 31, 2011
Red Hat Enterprise Linux version 6 (bind) RHSA-2011:0845 May 31, 2011

External References

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For clarification or corrections please contact the Red Hat Security Response Team.