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CVE-2021-32625

Redis vulnerability in STRALGO LCS on 32-bit systems

Published: Jun 2, 2021Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-680
NVD MITRE
7.5CVSSHIGH
EPSS Score
4.4%
Top 10.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Redis is an open source (BSD licensed), in-memory data structure store, used as a database, cache, and message broker. An integer overflow bug in Redis version 6.0 or newer, could be exploited using the STRALGO LCS command to corrupt the heap and potentially result with remote code execution. This is a result of an incomplete fix by CVE-2021-29477. The problem is fixed in version 6.2.4 and 6.0.14. An additional workaround to mitigate the problem without patching the redis-server executable is to use ACL configuration to prevent clients from using the STRALGO LCS command. On 64 bit systems which have the fixes of CVE-2021-29477 (6.2.3 or 6.0.13), it is sufficient to make sure that the proto-max-bulk-len config parameter is smaller than 2GB (default is 512MB).

CVSS Vector Breakdown

AV:NAC:HPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-680CWE-190

Affected Products

redisredis
On-premDatabase
Databases / cache-message-queue
Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
RedisRedis Labs
On-premDatabase
Databases / cache-message-queue
ОСОН ОСнова ОnyxАО «НППКТ»
On-premOS
Operating Systems / linux-distro
ОС ОН «Стрелец»АО «Концерн ВНИИНС»
On-premOS
Operating Systems / linux-distro
redisoss-projectUSDatabasesaka redis server, redis-py, go-redis
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
redis labscommercialUSDatabasesaka redis labs redis, hiredis
ао «нппкт»commercialRUOperating Systems
ао «концерн вниинс»commercialRUOperating Systemsaka ao konsern vniins
and 2 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://github.com/redis/redis/security/advisories/GHSA-46cp-x4x9-6pfq
github.com
https://github.com/redis/redis/releases/tag/6.0.14
github.com
https://github.com/redis/redis/releases/tag/6.2.4
github.com
and 11 more references View all →

Timeline

Published
Jun 2, 2021
Last Updated
Nov 21, 2024

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