7.5
CVSSv3

CVE-2021-32627

Published: 04/10/2021 Updated: 07/11/2023
CVSS v2 Base Score: 6 | Impact Score: 6.4 | Exploitability Score: 6.8
CVSS v3 Base Score: 7.5 | Impact Score: 5.9 | Exploitability Score: 1.6
VMScore: 534
Vector: AV:N/AC:M/Au:S/C:P/I:P/A:P

Vulnerability Summary

Redis is an open source, in-memory database that persists on disk. In affected versions an integer overflow bug in Redis can be exploited to corrupt the heap and potentially result with remote code execution. The vulnerability involves changing the default proto-max-bulk-len and client-query-buffer-limit configuration parameters to very large values and constructing specially crafted very large stream elements. The problem is fixed in Redis 6.2.6, 6.0.16 and 5.0.14. For users unable to upgrade an additional workaround to mitigate the problem without patching the redis-server executable is to prevent users from modifying the proto-max-bulk-len configuration parameter. This can be done using ACL to restrict unprivileged users from using the CONFIG SET command.

Vulnerability Trend

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redis redis

fedoraproject fedora 33

fedoraproject fedora 34

fedoraproject fedora 35

debian debian linux 10.0

debian debian linux 11.0

netapp management services for element software -

netapp management services for netapp hci -

oracle communications operations monitor 4.3

oracle communications operations monitor 4.4

oracle communications operations monitor 5.0

Vendor Advisories

Multiple vulnerabilities were discovered in Redis, a persistent key-value database, which could result in denial of service or the execution of arbitrary code For the oldstable distribution (buster), these problems have been fixed in version 5:5014-1+deb10u1 For the stable distribution (bullseye), these problems have been fixed in version 5:60 ...
Redis is an open source, in-memory database that persists on disk In affected versions specially crafted Lua scripts executing in Redis can cause the heap-based Lua stack to be overflowed, due to incomplete checks for this condition This can result with heap corruption and potentially remote code execution This problem exists in all versions of ...
Redis is an open source, in-memory database that persists on disk In affected versions an integer overflow bug in Redis can be exploited to corrupt the heap and potentially result with remote code execution The vulnerability involves changing the default proto-max-bulk-len and client-query-buffer-limit configuration parameters to very large value ...
An integer overflow bug in Redis 50 or newer can be exploited to corrupt the heap and potentially result with remote code execution The vulnerability involves changing the default proto-max-bulk-len and client-query-buffer-limit configuration parameters to very large values and constructing specially crafted very large stream elements The prob ...