vulnerability

Redis: Integer Overflow or Wraparound (CVE-2021-29478)

Severity
6
CVSS
(AV:N/AC:M/Au:S/C:P/I:P/A:P)
Published
May 4, 2021
Added
May 21, 2021
Modified
Mar 30, 2026

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 6.2 before 6.2.3 could be exploited to corrupt the heap and potentially result with remote code execution. Redis 6.0 and earlier are not directly affected by this issue. The problem is fixed in version 6.2.3. An additional workaround to mitigate the problem without patching the `redis-server` executable is to prevent users from modifying the `set-max-intset-entries` configuration parameter. This can be done using ACL to restrict unprivileged users from using the `CONFIG SET` command.

Solution

redislabs-redis-upgrade-6_2_3
Title
Rapid7 Labs

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