Security Bulletin
Summary
Several security vulnerablities were found in the Apache Netty library used by several components in IBM Cloud Pak for Multicloud Management Monitoring.
Vulnerability Details
CVEID: CVE-2021-37136
DESCRIPTION: Netty netty-codec is vulnerable to a denial of service, caused by not allow size restrictions for decompressed data in the Bzip2Decoder. By sending a specially-crafted input, 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/211777 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-2021-37137
DESCRIPTION: Netty netty-codec is vulnerable to a denial of service, caused by not restrict the chunk length in the SnappyFrameDecoder. By sending a specially-crafted input, a remote attacker could exploit this vulnerability to cause excessive memory usage, and results in a denial of service condition.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/211779 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-2021-43797
DESCRIPTION: Netty is vulnerable to HTTP request smuggling, caused by improper parsing of the HTTP transfer-encoding request header names. By sending a specially-crafted HTTP(S) transfer-encoding request header, an attacker could exploit this vulnerability to poison the web cache, bypass web application firewall protection, and conduct XSS attacks.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/215118 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| IBM Cloud Pak for Multicloud Management Monitoring | 2.0 - 2.3 Fix Pack 4 |
Remediation/Fixes
IBM strongly recommends addressing the vulnerability now by upgrading using the instructions found at https://www.ibm.com/docs/en/cloud-paks/cp-management/2.3.x?topic=installation-upgrade.
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
References
Change History
28 Jun 2022: 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:
29 June 2022
Initial Publish date:
28 June 2022
UID
ibm16599641