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Red Hat Security Advisory 2021-3946-01

Red Hat Security Advisory 2021-3946-01
Posted Oct 20, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3946-01 - 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. Issues addressed include denial of service and integer overflow vulnerabilities.

tags | advisory, denial of service, overflow, vulnerability
systems | linux, redhat
advisories | CVE-2021-32626, CVE-2021-32627, CVE-2021-32628, CVE-2021-32675, CVE-2021-32687, CVE-2021-41099
SHA-256 | afbd7444f6627719d0d8f8c6ac290169b2c7b9a298352d274428813288170dd8

Red Hat Security Advisory 2021-3946-01

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====================================================================
Red Hat Security Advisory

Synopsis: Important: redis:5 security update
Advisory ID: RHSA-2021:3946-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:3946
Issue date: 2021-10-20
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 8.1 Extended Update Support.

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 EUS (v. 8.1) - 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 EUS (v. 8.1):

Source:
redis-5.0.3-5.module+el8.1.0+12925+6460abef.src.rpm

aarch64:
redis-5.0.3-5.module+el8.1.0+12925+6460abef.aarch64.rpm
redis-debuginfo-5.0.3-5.module+el8.1.0+12925+6460abef.aarch64.rpm
redis-debugsource-5.0.3-5.module+el8.1.0+12925+6460abef.aarch64.rpm
redis-devel-5.0.3-5.module+el8.1.0+12925+6460abef.aarch64.rpm

noarch:
redis-doc-5.0.3-5.module+el8.1.0+12925+6460abef.noarch.rpm

ppc64le:
redis-5.0.3-5.module+el8.1.0+12925+6460abef.ppc64le.rpm
redis-debuginfo-5.0.3-5.module+el8.1.0+12925+6460abef.ppc64le.rpm
redis-debugsource-5.0.3-5.module+el8.1.0+12925+6460abef.ppc64le.rpm
redis-devel-5.0.3-5.module+el8.1.0+12925+6460abef.ppc64le.rpm

s390x:
redis-5.0.3-5.module+el8.1.0+12925+6460abef.s390x.rpm
redis-debuginfo-5.0.3-5.module+el8.1.0+12925+6460abef.s390x.rpm
redis-debugsource-5.0.3-5.module+el8.1.0+12925+6460abef.s390x.rpm
redis-devel-5.0.3-5.module+el8.1.0+12925+6460abef.s390x.rpm

x86_64:
redis-5.0.3-5.module+el8.1.0+12925+6460abef.x86_64.rpm
redis-debuginfo-5.0.3-5.module+el8.1.0+12925+6460abef.x86_64.rpm
redis-debugsource-5.0.3-5.module+el8.1.0+12925+6460abef.x86_64.rpm
redis-devel-5.0.3-5.module+el8.1.0+12925+6460abef.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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