Vulnerability Details : CVE-2021-3470
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.
Vulnerability category: OverflowMemory Corruption
Products affected by CVE-2021-3470
- cpe:2.3:a:redislabs:redis:*:*:*:*:*:*:*:*
- cpe:2.3:a:redislabs:redis:*:*:*:*:*:*:*:*
- cpe:2.3:a:redislabs:redis:6.2.0:rc1:*:*:*:*:*:*
- cpe:2.3:a:redislabs:redis:6.2.0:rc2:*:*:*:*:*:*
- cpe:2.3:a:redislabs:redis:6.2.0:rc3:*:*:*:*:*:*
Threat overview for CVE-2021-3470
Top countries where our scanners detected CVE-2021-3470
Top open port discovered on systems with this issue
6379
IPs affected by CVE-2021-3470 25,165
Threat actors abusing to this issue?
Yes
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affected by CVE-2021-3470!
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Exploit prediction scoring system (EPSS) score for CVE-2021-3470
0.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 42 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-3470
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
5.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
3.9
|
1.4
|
NIST |
CWE ids for CVE-2021-3470
-
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.Assigned by: secalert@redhat.com (Secondary)
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-3470
-
https://bugzilla.redhat.com/show_bug.cgi?id=1943623
1943623 – (CVE-2021-3470) CVE-2021-3470 redis: potential heap overflow when using a heap allocator other than jemalloc or glibc's mallocIssue Tracking;Patch;Third Party Advisory
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