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    4 vulnerabilities found for fluentd by fluent

    CVE-2022-39379 (GCVE-0-2022-39379)

    Vulnerability from cvelistv5 – Published: 2022-11-02 00:00 – Updated: 2025-04-23 16:41
    VLAI
    Title
    Fluentd vulnerable to remote code execution due to insecure deserialization (in non-default configuration)
    Summary
    Fluentd collects events from various data sources and writes them to files, RDBMS, NoSQL, IaaS, SaaS, Hadoop and so on. A remote code execution (RCE) vulnerability in non-default configurations of Fluentd allows unauthenticated attackers to execute arbitrary code via specially crafted JSON payloads. Fluentd setups are only affected if the environment variable `FLUENT_OJ_OPTION_MODE` is explicitly set to `object`. Please note: The option FLUENT_OJ_OPTION_MODE was introduced in Fluentd version 1.13.2. Earlier versions of Fluentd are not affected by this vulnerability. This issue was patched in version 1.15.3. As a workaround do not use `FLUENT_OJ_OPTION_MODE=object`.
    Severity
    3.1 (Low)
    CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-502 - Deserialization of Untrusted Data
    Assigner
    References
    Impacted products
    Vendor Product Version
    fluent fluentd Affected: >= 1.13.2, < 1.15.3
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2021-41186 (GCVE-0-2021-41186)

    Vulnerability from cvelistv5 – Published: 2021-10-29 13:40 – Updated: 2024-08-04 03:08
    VLAI
    Title
    ReDoS vulnerability in parser_apache2
    Summary
    Fluentd collects events from various data sources and writes them to files to help unify logging infrastructure. The parser_apache2 plugin in Fluentd v0.14.14 to v1.14.1 suffers from a regular expression denial of service (ReDoS) vulnerability. A broken apache log with a certain pattern of string can spend too much time in a regular expression, resulting in the potential for a DoS attack. This issue is patched in version 1.14.2 There are two workarounds available. Either don't use parser_apache2 for parsing logs (which cannot guarantee generated by Apache), or put patched version of parser_apache2.rb into /etc/fluent/plugin directory (or any other directories specified by the environment variable `FLUENT_PLUGIN` or `--plugin` option of fluentd).
    Severity
    5.9 (Medium)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
    CWE
    • CWE-400 - Uncontrolled Resource Consumption
    Assigner
    References
    Impacted products
    Vendor Product Version
    fluent fluentd Affected: >= 0.14.14, < 1.14.2
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2022-39379 (GCVE-0-2022-39379)

    Vulnerability from nvd – Published: 2022-11-02 00:00 – Updated: 2025-04-23 16:41
    VLAI
    Title
    Fluentd vulnerable to remote code execution due to insecure deserialization (in non-default configuration)
    Summary
    Fluentd collects events from various data sources and writes them to files, RDBMS, NoSQL, IaaS, SaaS, Hadoop and so on. A remote code execution (RCE) vulnerability in non-default configurations of Fluentd allows unauthenticated attackers to execute arbitrary code via specially crafted JSON payloads. Fluentd setups are only affected if the environment variable `FLUENT_OJ_OPTION_MODE` is explicitly set to `object`. Please note: The option FLUENT_OJ_OPTION_MODE was introduced in Fluentd version 1.13.2. Earlier versions of Fluentd are not affected by this vulnerability. This issue was patched in version 1.15.3. As a workaround do not use `FLUENT_OJ_OPTION_MODE=object`.
    Severity
    3.1 (Low)
    CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-502 - Deserialization of Untrusted Data
    Assigner
    References
    Impacted products
    Vendor Product Version
    fluent fluentd Affected: >= 1.13.2, < 1.15.3
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2021-41186 (GCVE-0-2021-41186)

    Vulnerability from nvd – Published: 2021-10-29 13:40 – Updated: 2024-08-04 03:08
    VLAI
    Title
    ReDoS vulnerability in parser_apache2
    Summary
    Fluentd collects events from various data sources and writes them to files to help unify logging infrastructure. The parser_apache2 plugin in Fluentd v0.14.14 to v1.14.1 suffers from a regular expression denial of service (ReDoS) vulnerability. A broken apache log with a certain pattern of string can spend too much time in a regular expression, resulting in the potential for a DoS attack. This issue is patched in version 1.14.2 There are two workarounds available. Either don't use parser_apache2 for parsing logs (which cannot guarantee generated by Apache), or put patched version of parser_apache2.rb into /etc/fluent/plugin directory (or any other directories specified by the environment variable `FLUENT_PLUGIN` or `--plugin` option of fluentd).
    Severity
    5.9 (Medium)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
    CWE
    • CWE-400 - Uncontrolled Resource Consumption
    Assigner
    References
    Impacted products
    Vendor Product Version
    fluent fluentd Affected: >= 0.14.14, < 1.14.2
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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