ISC BIND 9.x < 9.9.8-P3 / 9.9.8-S4 / 9.9.9-S3 / 9.10.3-P3 DoS

Medium Nessus Network Monitor Plugin ID 9869

Synopsis

The remote DNS server may be affected by a Denial of Service (DoS) attack vector.

Description

Versions of ISC BIND 9.x prior to 9.9.8-P3, 9.9.8-S4, 9.9.9-S3 and 9.10.3-P3 are unpatched for a flaw in the 'totext_in_apl()' function in 'lib/dns/rdata/in_1/apl_42.c' that is triggered when handling certain string formatting operations. This may allow an authenticated, remote attacker to cause the named service to terminate.

Solution

Upgrade ISC BIND to version 9.10.3-P3 or later. If version 9.10.x cannot be obtained, versions 9.9.9-S3, 9.9.8-S4 and 9.9.8-P3 are also patched for this vulnerability.

See Also

https://kb.isc.org/article/AA-01398

https://kb.isc.org/article/AA-01335

Plugin Details

Severity: Medium

ID: 9869

File Name: 9869.prm

Family: DNS Servers

Published: 2017/01/19

Modified: 2017/01/19

Dependencies: 1003

Nessus ID: 88385

Risk Information

Risk Factor: Medium

CVSSv2

Base Score: 6.8

Temporal Score: 5.9

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:C

Temporal Vector: CVSS2#E:ND/RL:OF/RC:C

CVSSv3

Base Score: 6.5

Temporal Score: 6.2

Vector: CVSS3#AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS3#E:X/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:isc:bind

Patch Publication Date: 2016/01/19

Vulnerability Publication Date: 2015/12/31

Reference Information

CVE: CVE-2015-8704

BID: 81329