Security Bulletin
Summary
A security vulnerability in Ruby on Rails affects IBM Cloud Pak for Multicloud Management Infrastructure Management.
Vulnerability Details
CVEID: CVE-2021-22902
DESCRIPTION: Ruby on Rails is vulnerable to a denial of service, caused by a use-after-free flaw in the in Action Dispatch. By sending specially-crafted Accept headers, a remote attacker could exploit this vulnerability to cause the mime type parser in Action Dispatch to do catastrophic backtracking in the regular expression engine.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/201281 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
CVEID: CVE-2021-22904
DESCRIPTION: Ruby on Rails is vulnerable to a denial of service, caused by a use-after-free flaw in the Token Authentication logic in Action Controller. By sending a specially-crafted request, a remote attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/201283 for the current score.
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
| Affected Product(s) | Version(s) |
| IBM Cloud Pak for Multicloud Management Infrastructure Management | All |
Remediation/Fixes
Upgrade to IBM Cloud Pak for Multicloud Management 2.3 latest fixpack by following the instructions in https://www.ibm.com/docs/en/cloud-paks/cp-management/2.3.x?topic=installation-upgrade.
Workarounds and Mitigations
None
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References
Change History
23 Jul 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:
26 July 2021
UID
ibm16475299