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Red Hat Security Advisory
Synopsis: Important: redis:5 security update
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
CVE Names: CVE-2021-32626 CVE-2021-32627 CVE-2021-32628
CVE-2021-32675 CVE-2021-32687 CVE-2021-41099
=====================================================================
1. Summary:
An update for the redis:5 module is now available for Red Hat Enterprise
Linux 8.
Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux AppStream (v. 8) - aarch64, noarch, ppc64le, s390x,
x86_64
3. Description:
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.
4. 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
5. Bugs fixed (https://bugzilla.redhat.com/):
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
6. 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
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
7. 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
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2021 Red Hat, Inc.
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