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.

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

Configuration: Enable paranoid mode

Supported Sensors: Nessus

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

Vulnerability Information

CPE: cpe:/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

CERT: 795694

Secunia: 44719

Detections

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