Security Bulletin
Summary
Versions of IBP images javaenv and dind before 2.5.1 release on 12082020 included a version of gradle that depended upon vulnerable Apache libraries. Gradle is a build system, intended to aid in building chaincode, though not required for building chaincode.
Vulnerability Details
CVEID: CVE-2020-11979
DESCRIPTION: Apache Ant could allow a remote authenticated attacker to bypass security restrictions, caused by an insecure temporary file flaw. By sending a specially-crafted request, an attacker could exploit this vulnerability to inject modified source files into the build process.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/189164 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| IBM Blockchain Platform (Software/on-prem) | All |
Remediation/Fixes
Update javaenv and dind images. The gradle instance on the images has been replaced by a gradle 'wrapper' that will install the latest version of gradle.
Workarounds and Mitigations
Update Gradle, or use another build system, e.g. Maven.
Get Notified about Future Security Bulletins
References
Change History
11 Dec 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:
14 December 2020
Initial Publish date:
11 December 2020
UID
ibm16381828