ISC BIND 9 Large RRSIG RRsets Negative Caching Remote DoS
high Nessus Plugin ID 54923
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Synopsis
The remote name server may be affected by a denial of service vulnerability.Description
According to its self-reported version number, the remote installation of BIND is potentially affected by a denial of service vulnerability. If BIND queries a domain with large RRSIG resource record sets it may trigger an assertion failure and cause the name server process to crash due to an off-by-one error in a buffer size check.Note that Nessus has only relied on the version itself and has not attempted to determine whether or not the install is actually vulnerable.
Solution
Upgrade to BIND 9.4-ESV-R4-P1 / 9.6-ESV-R4-P1 / 9.7.3-P1 / 9.8.0-P2 or later.See Also
https://www.isc.org/software/bind/advisories/cve-2011-1910
http://www.nessus.org/u?f9dd6d57
http://www.nessus.org/u?ba92a18e
Plugin Details
Severity: High
ID: 54923
File Name: bind9_980_p2.nasl
Version: 1.4
Type: remote
Family: DNS
Published: 5/31/2011
Updated: 6/27/2018
Dependencies: bind_version.nasl
Configuration: Enable paranoid mode
Risk Information
VPR
Risk Factor: Low
Score: 3.6
CVSS v2
Risk Factor: High
Base Score: 7.8
Temporal Score: 5.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C
Temporal Vector: CVSS2#E:U/RL:OF/RC:C
Vulnerability Information
CPE: cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*
Required KB Items: Settings/ParanoidReport, bind/version
Exploit Ease: No known exploits are available
Patch Publication Date: 5/27/2011
Vulnerability Publication Date: 5/27/2011
Reference Information
CVE: CVE-2011-1910
BID: 48007