Security Bulletin
Summary
Multiple vulnerabilities are exposed in the Redis implementation used as the in memory database for the Event Streams UI.
Vulnerability Details
CVEID: CVE-2021-32626
DESCRIPTION: Redis is vulnerable to a heap-based buffer overflow, caused by improper bounds checking. By executing specially-crafted Lua scripts, a remote authenticated attacker could overflow a buffer and execute arbitrary code on the system.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/210723 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)
CVEID: CVE-2021-32628
DESCRIPTION: Redis could allow a remote authenticated attacker to execute arbitrary code on the system, caused by an integer overflow in the handling of large ziplists. By sending a specially-crafted request using the ziplist configuration parameters, an attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/210725 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)
CVEID: CVE-2021-32627
DESCRIPTION: Redis could allow a remote authenticated attacker to execute arbitrary code on the system, caused by an integer overflow with Streams. By sending a specially-crafted request using the proto-max-bulk-len and client-query-buffer-limit configuration parameters, an attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/210724 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)
CVEID: CVE-2021-41099
DESCRIPTION: Redis is vulnerable to an heap-based buffer overflow, caused by improper bounds checking in the underlying string library. By sending a specially-crafted request, a remote authenticated attacker could overflow a buffer and execute arbitrary code on the system or cause a denial of service.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/210649 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)
CVEID: CVE-2021-32672
DESCRIPTION: Redis could allow a remote authenticated attacker to obtain sensitive information, caused by a flaw in the Lua Debugger. By sending specially-crafted requests, an attacker could exploit this vulnerability to read data beyond the actual buffer, and use this information to launch further attacks against the affected system.
CVSS Base score: 3.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/210726 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N)
CVEID: CVE-2021-32687
DESCRIPTION: Redis could allow a remote authenticated attacker to execute arbitrary code on the system, caused by an integer overflow with intsets. By sending a specially-crafted request using the intsets, an attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/210728 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)
CVEID: CVE-2021-32675
DESCRIPTION: Redis is vulnerable to a denial of service, caused by improper input validation. By sending specially-crafted Redis Standard Protocol (RESP) requests, a remote attacker could exploit this vulnerability to allocate significant amount of memory.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/210727 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 Event Streams | 2019.4.1, 2019.4.2, 2019.4.3, 2019.4.4 |
IBM Event Streams | 10.0.0, 10.1.0, 10.2.0, 10.2.1, 10.3.0, 10.3.1, 10.4.0 |
Remediation/Fixes
IBM Event Streams (Helm-based releases)
- Download the 2019.4.5 release from IBM Fix Central.
- Upgrade to IBM Event Streams 2019.4.5 by following the upgrading and migrating documentation.
IBM Event Streams (Continuous Delivery)
- Upgrade to IBM Event Streams 10.5.0 by following the upgrading and migrating documentation.
IBM Event Streams (Extended Update Support)
- Upgrade to IBM Event Streams 10.2.2 by following the upgrading and migrating documentation.
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
References
Acknowledgement
Change History
11 Oct 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:
21 December 2021
UID
ibm16523748