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AIX 7.1 TL 5 : bind (IJ44422)

high Nessus Plugin ID 169316

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Synopsis

The remote AIX host is missing a security patch.

Description

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-38178 ISC BIND is vulnerable to a denial of service, caused by a memory leak in the DNSSEC verification code for the EdDSA algorithm. By spoofing the target resolver with responses that have a malformed EdDSA signature, a remote attacker could exploit this vulnerability to cause named to crash. ISC BIND is vulnerable to a denial of service, caused by an error when stale cache and stale answers are enabled, option stale-answer-client-timeout is set to 0 and there is a stale CNAME in the cache for an incoming query. By sending a specially-crafted request, a remote attacker could exploit this vulnerability to cause named to crash. ISC BIND is vulnerable to a denial of service, caused by a small memory leak in the DNSSEC verification code for the ECDSA algorithm. By spoofing the target resolver with responses that have a malformed ECDSA signature, a remote attacker could exploit this vulnerability to cause named to crash. ISC BIND is vulnerable to a denial of service, caused by a flaw in resolver code. By flooding the target resolver with queries, a remote attacker could exploit this vulnerability to severely degrade the resolver's performance, effectively denying legitimate clients access to the DNS resolution service.

Solution

Install the appropriate interim fix.

See Also

https://aix.software.ibm.com/aix/efixes/security/bind_advisory22.asc

Plugin Details

Severity: High

ID: 169316

File Name: aix_IJ44422.nasl

Version: 1.3

Type: local

Published: 12/27/2022

Updated: 4/20/2023

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

CVSS Score Source: CVE-2022-38178

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:ibm:aix:7.1

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

Exploit Ease: No known exploits are available

Patch Publication Date: 12/22/2022

Vulnerability Publication Date: 12/22/2022

Reference Information

CVE: CVE-2022-2795, CVE-2022-3080, CVE-2022-38177, CVE-2022-38178