Security Bulletin: Multiple vulnerabilities in Redis affecting the IBM Event Streams UI

2021-12-2117:42:58

www.ibm.com

redis

ibm event streams

buffer overflow

integer overflow

remote attack

arbitrary code

sensitive information

EPSS

0.023

Percentile

89.9%

JSON

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)