Security Bulletin
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.
Workarounds and Mitigations
None known
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References
*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.
Disclaimer
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
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Document Information
Modified date:
18 December 2019
UID
nas8N1021350