AIX 7.2 TL 3 : bind (IJ25926)

high Nessus Plugin ID 139754

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Synopsis

The remote AIX host is missing a security patch.

Description

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8616 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8616 ISC BIND is vulnerable to a denial of service, caused by the failure to limit the number of fetches performed when processing referrals. By using specially crafted referrals, a remote attacker could exploit this vulnerability to cause the recursing server to issue a very large number of fetches in an attempt to process the referral. ISC BIND is vulnerable to a denial of service, caused by a logic error in code which checks TSIG validity. A remote attacker could exploit this vulnerability to trigger an assertion failure in tsig.c.

Solution

Install the appropriate interim fix.

See Also

http://aix.software.ibm.com/aix/efixes/security/bind_advisory17.asc

Plugin Details

Severity: High

ID: 139754

File Name: aix_IJ25926.nasl

Version: 1.3

Type: local

Published: 8/24/2020

Updated: 4/7/2021

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2020-8617

VPR

Risk Factor: Medium

Score: 6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Temporal Vector: E:POC/RL:OF/RC:C

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:ibm:aix:7.2

Required KB Items: Host/AIX/lslpp, Host/local_checks_enabled, Host/AIX/version

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/21/2020

Vulnerability Publication Date: 8/21/2020

Reference Information

CVE: CVE-2020-8616, CVE-2020-8617