← Back

CVE-2021-32625

nvd nist
Published: Jun 2, 2021Modified: Nov 21, 2024

JSON object

Loading...
8.8
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability: 2.8 / Impact: 5.9
Source: NVD

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).

Affected (4)

Redislabs
1 product
Redis
Fedoraproject
1 product
Fedora
Configuration A
2 vulnerable
Vulnerable SoftwareAffected Versions
Redislabs
Redis
From 6.0.0 to 6.0.14
Redis
From 6.2.0 to 6.2.4
Configuration B
2 vulnerable
Vulnerable SoftwareAffected Versions
Fedoraproject
Fedora
Version 33
Fedora
Version 34

Related CWEs

CWE-190
Integer Overflow or Wraparound
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
CWE-680
Integer Overflow to Buffer Overflow
The product performs a calculation to determine how much memory to allocate, but an integer overflow can occur that causes less memory to be allocated than expected, leading to a buffer overflow.

References (10)

Source: security-advisories@github.com
Release NotesThird Party Advisory
Source: security-advisories@github.com
Release NotesThird Party Advisory
Source: security-advisories@github.com
Third Party Advisory
Source: security-advisories@github.com
Source: security-advisories@github.com
Source: af854a3a-2127-422b-91ae-364da2661108
Release NotesThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Release NotesThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.