CVE-2021-29478

    Dashboard / Vulnerabilities / CVE-2021-29478

    CVE-2021-29478

    Published: 4 May 2021Last Modified: 7 Aug 2026

    Summary:

    Details: 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.

    References: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BPWBIZXA67JFIB63W2CNVVILCGIC2ME5/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EZJ6JGQ2ETZB2DWTQSGCOGG7EF3ILV4V/, https://redis.io/, https://github.com/redis/redis/security/advisories/GHSA-qh52-crrg-44g3, https://security.gentoo.org/glsa/202107-20

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 445aa844b946a8f1bc21ac8554b44adb1ecb4018
    Fixed -e90e5640e7840860bc6726a08135ea86687bbd58

    Affected versions

    6.2.2
    6.2.1
    6.2.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2021-29478 | CVE-DB