Severity
7.5HIGH
EPSS
0.4%
top 37.36%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedOct 4
Latest updateAug 3

Description

Redis is an open source, in-memory database that persists on disk. An integer overflow bug in the ziplist data structure used by all versions of Redis can be exploited to corrupt the heap and potentially result with remote code execution. The vulnerability involves modifying the default ziplist configuration parameters (hash-max-ziplist-entries, hash-max-ziplist-value, zset-max-ziplist-entries or zset-max-ziplist-value) to a very large value, and then constructing specially crafted commands to c

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.6 | Impact: 5.9

Affected Packages4 packages

CVEListV5redis/redis< 5.0.14+2
NVDredis/redis5.0.05.0.14+2
Debianredis< 5:6.0.16-1+deb11u1+3

Also affects: Debian Linux 10.0, 11.0, Fedora 33, 34, 35

Patches

🔴Vulnerability Details

2
OSV
CVE-2021-32628: Redis is an open source, in-memory database that persists on disk2021-10-04
CVEList
Vulnerability in handling large ziplists2021-10-04

📋Vendor Advisories

4
Ubuntu
Redis vulnerabilities2022-08-03
Microsoft
Vulnerability in handling large ziplists2021-10-12
Red Hat
redis: Integer overflow bug in the ziplist data structure2021-10-04
Debian
CVE-2021-32628: redis - Redis is an open source, in-memory database that persists on disk. An integer ov...2021