A Redis security update has been released for Gentoo Linux.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory GLSA 202103-02
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  https://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Severity: Normal
Title: Redis: Remote code execution
Date: March 31, 2021
Bugs: #773328
ID: 202103-02

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
========

A vulnerability in Redis could lead to remote code execution.

Background
==========

Redis is an open source (BSD licensed), in-memory data structure store,
used as a database, cache and message broker.

Affected packages
=================

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-db/redis < 6.0.12 >= 5.0.12
>= 6.0.12

Description
===========

It was discovered that there were a number of integer overflow issues
in Redis.

Impact
======

A remote attacker, able to connect to a Redis instance, could send a
malicious crafted large request possibly resulting in the execution of
arbitrary code with the privileges of the process or a Denial of
Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Redis 5.x users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-db/redis-5.0.12"

All Redis 6.x users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-db/redis-6.0.12"

References
==========

[ 1 ] CVE-2021-21309
  https://nvd.nist.gov/vuln/detail/CVE-2021-21309

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  https://security.gentoo.org/glsa/202103-02

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
  https://bugs.gentoo.org.

License
=======

Copyright 2021 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

  https://creativecommons.org/licenses/by-sa/2.5