Security Bulletin
Summary
IBM Security Privileged Identity Manager has addressed issues for dnsmasq as follows.
Vulnerability Details
CVEID: CVE-2020-25684
DESCRIPTION: dnsmasq is vulnerable to dns cache poisoning, caused by the failure to validate the combination of address/port and the query-id fields of DNS request when accepting DNS responses. By using unsolicited DNS responses, an attacker could exploit this vulnerability to poison the DNS cache and redirect users to arbitrary sites.
The vulnerability is known as DNSpooq.
CVSS Base score: 4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/195081 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N)
CVEID: CVE-2020-25685
DESCRIPTION: dnsmasq is vulnerable to dns cache poisoning, caused by the use of a weak hashing algorithm (CRC32) when compiled without DNSSEC to validate DNS responses. By using unsolicited DNS responses, an attacker could exploit this vulnerability to poison the DNS cache and redirect users to arbitrary sites.
The vulnerability is known as DNSpooq.
CVSS Base score: 4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/195082 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N)
CVEID: CVE-2020-25686
DESCRIPTION: dnsmasq is vulnerable to dns cache poisoning, caused by the failure to check for an existing pending request for the same name. By performing a "Birthday Attack" scenario to forge replies, an attacker could exploit this vulnerability to poison the DNS cache and redirect users to arbitrary sites.
The vulnerability is known as DNSpooq.
CVSS Base score: 4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/195083 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| ISPIM | 2.1.1 |
Workarounds and Mitigations
None
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References
Change History
04 Aug 2021: Initial Publication
*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.
Document Location
Worldwide
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Document Information
Modified date:
04 August 2021
Initial Publish date:
04 August 2021
UID
ibm16478161