Security Bulletin
Summary
Multiple vulnerabilities have been found in the Bleach package, which is either built in to or distributed with IBM WMLCE.
Vulnerability Details
CVEID: CVE-2020-6816
DESCRIPTION: Mozilla Bleach is vulnerable to cross-site scripting, caused by improper validation of user-supplied input by the bleach.clean. A remote attacker could exploit this vulnerability using the svg or math in the allowed/allowlisted tags to inject malicious script into a Web page which would be executed in a victim's Web browser within the security context of the hosting Web site, once the page is viewed. An attacker could use this vulnerability to steal the victim's cookie-based authentication credentials.
CVSS Base score: 6.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/178671 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)
CVEID: CVE-2020-6802
DESCRIPTION: Mozilla Bleach is vulnerable to cross-site scripting, caused by improper validation of user-supplied input by the bleach.clean A remote attacker could exploit this vulnerability using a raw tag in the allowed/allowlisted tags option to inject malicious script into a Web page which would be executed in a victim's Web browser within the security context of the hosting Web site, once the page is viewed. An attacker could use this vulnerability to steal the victim's cookie-based authentication credentials.
CVSS Base score: 6.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/178672 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| IBM WML Community Edition | 1.6.2 |
| IBM WML Community Edition | 1.7.0 |
Remediation/Fixes
All IBM WMLCE distribution channels have been updated. For those using containers, pulling the image again from its upstream container registry (https://hub.docker.com/r/ibmcom/powerai, https://catalog.redhat.com, etc) will download an updated image with CVEs resolved. All others should update directly from our conda channel via `conda update`.
Workarounds and Mitigations
None
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References
Change History
18 May 2020: 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:
19 May 2020
UID
ibm16211861