DEBIAN-CVE-2021-43304

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    DEBIAN-CVE-2021-43304

    Published: 14 Mar 2022Last Modified: 23 Oct 2026
    Upstream:
    CVE-2021-43304

    Summary:

    Details: Heap buffer overflow in Clickhouse's LZ4 compression codec when parsing a malicious query. There is no verification that the copy operations in the LZ4::decompressImpl loop and especially the arbitrary copy operation wildCopy<copy_amount>(op, ip, copy_end), don’t exceed the destination buffer’s limits.

    References: https://security-tracker.debian.org/tracker/CVE-2021-43304

    Affected packages

    Package

    Name: clickhouse

    Purl: pkg:deb/debian/clickhouse?arch=source&distro=bookworm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -18.16.1+ds-7.3

    Affected versions

    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
    DEBIAN-CVE-2021-43304 | CVE-DB