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RHEL 8.4: RHSA-2021:3918-01 Important: redis Denial of Service Fix

red hat
Calendar Grey October 19, 2021
Dist Redhat Esm H88
Canonical issued a critical patch for nginx:1.18, resolving various memory corruption vulnerabilities and additional concerns.
An update for the redis:5 module is now available for Red Hat Enterprise Linux 8

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Summary

Redis is an advanced key-value store. It is often referred to as a data-structure server since keys can contain strings, hashes, lists, sets, and sorted sets. For performance, Redis works with an in-memory data set. You can persist it either by dumping the data set to disk every once in a while, or by appending each command to a log.
Security Fix(es):
* redis: Lua scripts can overflow the heap-based Lua stack (CVE-2021-32626)
* redis: Integer overflow issue with Streams (CVE-2021-32627)
* redis: Integer overflow bug in the ziplist data structure (CVE-2021-32628)
* redis: Denial of service via Redis Standard Protocol (RESP) request (CVE-2021-32675)
* redis: Integer overflow issue with intsets (CVE-2021-32687)
* redis: Integer overflow issue with strings (CVE-2021-41099)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Topics%20covered

Topics Covered

security advisory DoS important overflow RHEL redis

References

https://access.redhat.com/security/cve/CVE-2021-32626 https://access.redhat.com/security/cve/CVE-2021-32627 https://access.redhat.com/security/cve/CVE-2021-32628 https://access.redhat.com/security/cve/CVE-2021-32675 https://access.redhat.com/security/cve/CVE-2021-32687 https://access.redhat.com/security/cve/CVE-2021-41099 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: redis-5.0.3-5.module+el8.4.0+12927+b9845322.src.rpm
aarch64: redis-5.0.3-5.module+el8.4.0+12927+b9845322.aarch64.rpm redis-debuginfo-5.0.3-5.module+el8.4.0+12927+b9845322.aarch64.rpm redis-debugsource-5.0.3-5.module+el8.4.0+12927+b9845322.aarch64.rpm redis-devel-5.0.3-5.module+el8.4.0+12927+b9845322.aarch64.rpm
noarch: redis-doc-5.0.3-5.module+el8.4.0+12927+b9845322.noarch.rpm
ppc64le: redis-5.0.3-5.module+el8.4.0+12927+b9845322.ppc64le.rpm redis-debuginfo-5.0.3-5.module+el8.4.0+12927+b9845322.ppc64le.rpm redis-debugsource-5.0.3-5.module+el8.4.0+12927+b9845322.ppc64le.rpm redis-devel-5.0.3-5.module+el8.4.0+12927+b9845322.ppc64le.rpm
s390x: redis-5.0.3-5.module+el8.4.0+12927+b9845322.s390x.rpm redis-debuginfo-5.0.3-5.module+el8.4.0+12927+b9845322.s390x.rpm redis-debugsource-5.0.3-5.module+el8.4.0+12927+b9845322.s390x.rpm redis-devel-5.0.3-5.module+el8.4.0+12927+b9845322.s390x.rpm
x86_64: redis-5.0.3-5.module+el8.4.0+12927+b9845322.x86_64.rpm redis-debuginfo-5.0.3-5.module+el8.4.0+12927+b9845322.x86_64.rpm redis-debugsource-5.0.3-5.module+el8.4.0+12927+b9845322.x86_64.rpm redis-devel-5.0.3-5.module+el8.4.0+12927+b9845322.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:3918-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:3918
Issue date: 2021-10-19

Topic

An update for the redis:5 module is now available for Red Hat EnterpriseLinux 8.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory DoS important overflow RHEL redis

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64

Bugs Fixed

2010991 - CVE-2021-32687 redis: Integer overflow issue with intsets

2011000 - CVE-2021-32675 redis: Denial of service via Redis Standard Protocol (RESP) request

2011004 - CVE-2021-32628 redis: Integer overflow bug in the ziplist data structure

2011010 - CVE-2021-32627 redis: Integer overflow issue with Streams

2011017 - CVE-2021-32626 redis: Lua scripts can overflow the heap-based Lua stack

2011020 - CVE-2021-41099 redis: Integer overflow issue with strings

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