CVE-2021-29478 (GCVE-0-2021-29478)

Vulnerability from cvelistv5 – Published: 2021-05-04 16:00 – Updated: 2024-08-03 22:11
VLAI
Title
Vulnerability in the COPY command for large intsets
Summary
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.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-190 - Integer Overflow or Wraparound
Assigner
References
URL Tags
https://redis.io/ x_refsource_MISC
https://github.com/redis/redis/security/advisorie… x_refsource_CONFIRM
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://security.gentoo.org/glsa/202107-20 vendor-advisoryx_refsource_GENTOO
Impacted products
Vendor Product Version
redis redis Affected: >= 6.2.0, < 6.2.3
Create a notification for this product.
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    "redhat_vex": {
      "aggregate_severity": "Important",
      "current_release_date": "2026-02-24T17:22:10+00:00",
      "cve": "CVE-2021-29478",
      "id": "CVE-2021-29478",
      "initial_release_date": "2021-05-04T00:00:00+00:00",
      "product_status:known_affected": "5",
      "product_status:known_not_affected": "14",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "redis: Integer overflow via COPY command for large intsets",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-29478.json",
      "version": "3"
    }
  }
}