Upstream information

CVE-2021-32675 at MITRE

Description

Redis is an open source, in-memory database that persists on disk. When parsing an incoming Redis Standard Protocol (RESP) request, Redis allocates memory according to user-specified values which determine the number of elements (in the multi-bulk header) and size of each element (in the bulk header). An attacker delivering specially crafted requests over multiple connections can cause the server to allocate significant amount of memory. Because the same parsing mechanism is used to handle authentication requests, this vulnerability can also be exploited by unauthenticated users. The problem is fixed in Redis versions 6.2.6, 6.0.16 and 5.0.14. An additional workaround to mitigate this problem without patching the redis-server executable is to block access to prevent unauthenticated users from connecting to Redis. This can be done in different ways: Using network access control tools like firewalls, iptables, security groups, etc. or Enabling TLS and requiring users to authenticate using client side certificates.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having important severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 5
Vector AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 7.5 7.5
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network Network
Attack Complexity Low Low
Privileges Required None None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact None None
Integrity Impact None None
Availability Impact High High
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entry: 1191303 [IN_PROGRESS]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Enterprise Storage 7.1
SUSE Linux Enterprise High Performance Computing 15 SP3
SUSE Linux Enterprise Module for Server Applications 15 SP3
SUSE Linux Enterprise Server 15 SP3
SUSE Linux Enterprise Server for SAP Applications 15 SP3
SUSE Manager Proxy 4.2
SUSE Manager Retail Branch Server 4.2
SUSE Manager Server 4.2
  • redis >= 6.0.14-6.8.1
 Patchnames:
SUSE-SLE-Module-Server-Applications-15-SP3-2021-3772
SUSE Enterprise Storage 7
SUSE Linux Enterprise High Performance Computing 15 SP2
SUSE Linux Enterprise Module for Server Applications 15 SP2
SUSE Linux Enterprise Server 15 SP2
SUSE Linux Enterprise Server for SAP Applications 15 SP2
SUSE Manager Proxy 4.1
SUSE Manager Retail Branch Server 4.1
SUSE Manager Server 4.1
  • redis >= 6.0.14-6.8.1
 Patchnames:
SUSE-SLE-Module-Server-Applications-15-SP2-2021-3772
SUSE Liberty Linux 8
  • redis >= 6.0.9-5.module+el8.4.0+12929+1bb0d2aa
  • redis-devel >= 6.0.9-5.module+el8.4.0+12929+1bb0d2aa
  • redis-doc >= 6.0.9-5.module+el8.4.0+12929+1bb0d2aa
 Patchnames:
RHSA-2021:3918
RHSA-2021:3945
SUSE Linux Enterprise High Performance Computing 15 SP4
SUSE Linux Enterprise Module for Server Applications 15 SP4
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise Server for SAP Applications 15 SP4
SUSE Manager Proxy 4.3
SUSE Manager Retail Branch Server 4.3
SUSE Manager Server 4.3
  • redis >= 6.2.6-150400.1.5
 Patchnames:
SUSE Linux Enterprise Module for Server Applications 15 SP4 GA redis-6.2.6-150400.1.5
openSUSE Leap 15.3
  • redis >= 6.0.14-6.8.1
 Patchnames:
openSUSE-SLE-15.3-2021-3772
openSUSE Tumbleweed
  • redis >= 6.2.6-1.1
 Patchnames:
openSUSE-Tumbleweed-2024-11563

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Linux Enterprise High Performance Computing 15 SP5 redis Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP5 redis7 Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS redis Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS redis7 Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS redis Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS redis7 Already fixed
SUSE Linux Enterprise Module for Server Applications 15 SP5 redis Already fixed
SUSE Linux Enterprise Module for Server Applications 15 SP5 redis7 Already fixed
SUSE Linux Enterprise Server 15 SP5 redis Already fixed
SUSE Linux Enterprise Server 15 SP5 redis7 Already fixed
SUSE Linux Enterprise Server 15 SP5-LTSS redis Already fixed
SUSE Linux Enterprise Server 15 SP5-LTSS redis7 Already fixed
SUSE Linux Enterprise Server for SAP Applications 15 SP5 redis Already fixed
SUSE Linux Enterprise Server for SAP Applications 15 SP5 redis7 Already fixed
SUSE Manager Proxy 4.3 redis Already fixed
SUSE Manager Retail Branch Server 4.3 redis Already fixed
SUSE Manager Server 4.3 redis Already fixed
openSUSE Leap 15.5 redis Already fixed
openSUSE Leap 15.5 redis7 Already fixed
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise High Performance Computing 15 SP2 redis Released
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS redis Affected
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS redis Released
SUSE Linux Enterprise High Performance Computing 15 SP3 redis Released
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS redis Affected
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS redis Released
SUSE Linux Enterprise High Performance Computing 15 SP4 redis Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS redis Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS redis Already fixed
SUSE Linux Enterprise Module for Server Applications 15 SP2 redis Released
SUSE Linux Enterprise Module for Server Applications 15 SP3 redis Released
SUSE Linux Enterprise Module for Server Applications 15 SP4 redis Already fixed
SUSE Linux Enterprise Server 15 SP2 redis Released
SUSE Linux Enterprise Server 15 SP2-LTSS redis Released
SUSE Linux Enterprise Server 15 SP3 redis Released
SUSE Linux Enterprise Server 15 SP3-LTSS redis Released
SUSE Linux Enterprise Server 15 SP4 redis Already fixed
SUSE Linux Enterprise Server 15 SP4-LTSS redis Already fixed
SUSE Linux Enterprise Server for SAP Applications 15 SP2 redis Released
SUSE Linux Enterprise Server for SAP Applications 15 SP3 redis Released
SUSE Linux Enterprise Server for SAP Applications 15 SP4 redis Already fixed
Products past their end of life and not receiving proactive updates anymore.
SUSE Enterprise Storage 7 redis Released
SUSE Enterprise Storage 7.1 redis Released
SUSE Linux Enterprise Real Time 15 SP2 redis Affected
SUSE Linux Enterprise Real Time 15 SP3 redis Affected
SUSE Linux Enterprise Real Time 15 SP4 redis Already fixed
SUSE Linux Enterprise Server 15 SP2-BCL redis Affected
SUSE Linux Enterprise Server 15 SP3-BCL redis Affected
SUSE Manager Proxy 4.1 redis Released
SUSE Manager Proxy 4.2 redis Released
SUSE Manager Retail Branch Server 4.1 redis Released
SUSE Manager Retail Branch Server 4.2 redis Released
SUSE Manager Server 4.1 redis Released
SUSE Manager Server 4.2 redis Released
openSUSE Leap 15.3 redis Affected
openSUSE Leap 15.4 redis Already fixed

SUSE Timeline for this CVE

CVE page created: Mon Oct 4 23:00:46 2021
CVE page last modified: Fri Dec 20 23:33:48 2024