UBUNTU-CVE-2021-3470

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    UBUNTU-CVE-2021-3470

    Published: 31 Mar 2021Last Modified: 14 Apr 2026
    Upstream:
    CVE-2021-3470

    Summary:

    Details: A heap overflow issue was found in Redis in versions before 5.0.10, before 6.0.9 and before 6.2.0 when using a heap allocator other than jemalloc or glibc's malloc, leading to potential out of bound write or process crash. Effectively this flaw does not affect the vast majority of users, who use jemalloc or glibc malloc.

    References: https://ubuntu.com/security/CVE-2021-3470, https://github.com/redis/redis/pull/7963, https://github.com/redis/redis/commit/9824fe3e392caa04dc1b4071886e9ac402dd6d95, https://bugzilla.redhat.com/show_bug.cgi?id=1943623, https://www.cve.org/CVERecord?id=CVE-2021-3470

    Affected packages

    Package

    Name: redis

    Purl: pkg:deb/ubuntu/redis@2:2.8.4-2ubuntu0.2+esm5?arch=source&distro=esm-infra-legacy/trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    2:2.6.13-1
    2:2.6.16-3

    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
    UBUNTU-CVE-2021-3470 | CVE-DB