ISC BIND 9 Large RRSIG RRsets Negative Caching Remote DoS

High Nessus Plugin ID 54923

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

http://www.nessus.org/u?f9dd6d57

http://www.nessus.org/u?ba92a18e

http://www.nessus.org/u?d9a0b3f1

http://www.nessus.org/u?c270545b

https://www.isc.org/software/bind/advisories/cve-2011-1910

Plugin Details

Severity: High

ID: 54923

File Name: bind9_980_p2.nasl

Version: 1.4

Type: remote

Family: DNS

Published: 2011/05/31

Modified: 2018/06/27

Dependencies: 10028

Risk Information

Risk Factor: High

CVSSv2

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:/a:isc:bind

Required KB Items: bind/version, Settings/ParanoidReport

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2011/05/27

Vulnerability Publication Date: 2011/05/27

Reference Information

CVE: CVE-2011-1910

BID: 48007

CERT: 795694

Secunia: 44719