Security Bulletin: IBM i is affected by networking BIND vulnerabilities

2019-12-1814:26:38

www.ibm.com

8.6 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

JSON

Summary

ISC BIND is vulnerable to several security vulnerabilities.

Vulnerability Details

CVEID: CVE-2016-1286 DESCRIPTION: ISC BIND is vulnerable to a denial of service, caused by an error when parsing signature records for DNAME resource records. A remote attacker could exploit this vulnerability to trigger an assertion failure in resolver.c or db.c and cause the named process to crash.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/111390 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID: CVE-2016-2088 DESCRIPTION: ISC BIND is vulnerable to a denial of service, caused by an error in servers with cookie support enabled. By sending a response containing multiple DNS cookie options, a remote attacker could exploit this vulnerability to trigger an assertion failure.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/111391 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID: CVE-2016-1285 DESCRIPTION: ISC BIND is vulnerable to a denial of service, caused by the improper handling of control channel input. By sending a specially crafted packet, a remote attacker could exploit this vulnerability to trigger an assertion failure in sexpr.c or alist.c and cause the named process to crash.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/111389 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

Releases 6.1, 7.1, 7.2 and 7.3 of IBM i are affected.

Remediation/Fixes

The issue can be fixed by applying a PTF to IBM i.

Releases 6.1, 7.1 and 7.2 of IBM i are supported and will be fixed.

http://www-933.ibm.com/support/fixcentral/

The IBM i PTF numbers are:

Release 6.1 – SI60379 Release 7.1 – SI60348 Release 7.2 – SI60342 Release 7.3 – SI60386

_Important note: _IBM recommends that all users running unsupported versions of affected products upgrade to supported and fixed version of affected products.