Vulnerability DatabaseCVE-2021-3470
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CVE-2021-3470
Published:March 31, 2021
Updated:May 17, 2026
A heap overflow issue was found in Redis in versions before 5.0.10, before 6.0.9 and before 6.2.0 when using a heap allocator other than jemalloc or glibc's malloc, leading to potential out of bound write or process crash. Effectively this flaw does not affect the vast majority of users, who use jemalloc or glibc malloc.
Related Resources (4)
https://security.alpinelinux.org/vuln/CVE-2021-3470
https://security-tracker.debian.org/tracker/CVE-2021-3470
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-3470
https://bugzilla.redhat.com/show_bug.cgi?id=1943623
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CVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Weakness Type (CWE)
Out-of-bounds Write
CWE-787
Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-119
EPSS
Base Score:
0.66