CVE-2024-50609
Fluent Bit OpenTelemetry Denial of Service
Description
An issue was discovered in Fluent Bit 3.1.9. When the OpenTelemetry input plugin is running and listening on an IP address and port, one can send a packet with Content-Length: 0 and it crashes the server. Improper handling of the case when Content-Length is 0 allows a user (with access to the endpoint) to perform a remote Denial of service attack. The crash happens because of a NULL pointer dereference when 0 (from the Content-Length) is passed to the function cfl_sds_len, which in turn tries to cast a NULL pointer into struct cfl_sds. This is related to process_payload_traces_proto_ng() at opentelemetry_prot.c.
INFO
Published Date :
Feb. 18, 2025, 6:15 p.m.
Last Modified :
Feb. 19, 2025, 3:15 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2024-50609
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2024-50609.
| URL | Resource |
|---|---|
| https://fluentbit.io/announcements/ | |
| https://github.com/fluent/fluent-bit/releases | |
| https://www.ebryx.com/blogs/exploring-cve-2024-50608-and-cve-2024-50609 |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2024-50609 vulnerability anywhere in the article.
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Cybersecurity News
Fluent Bit Vulnerabilities (CVE-2024-50608 & CVE-2024-50609) Could Disrupt Millions of Enterprise Systems
Image: EbryxCybersecurity researchers at Ebryx have identified two vulnerabilities in Fluent Bit, a widely used open-source log processor and forwarder. These vulnerabilities, tracked as CVE-2024-5060 ... Read more
The following table lists the changes that have been made to the
CVE-2024-50609 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Feb. 19, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-476 -
New CVE Received by [email protected]
Feb. 18, 2025
Action Type Old Value New Value Added Description An issue was discovered in Fluent Bit 3.1.9. When the OpenTelemetry input plugin is running and listening on an IP address and port, one can send a packet with Content-Length: 0 and it crashes the server. Improper handling of the case when Content-Length is 0 allows a user (with access to the endpoint) to perform a remote Denial of service attack. The crash happens because of a NULL pointer dereference when 0 (from the Content-Length) is passed to the function cfl_sds_len, which in turn tries to cast a NULL pointer into struct cfl_sds. This is related to process_payload_traces_proto_ng() at opentelemetry_prot.c. Added Reference https://fluentbit.io/announcements/ Added Reference https://github.com/fluent/fluent-bit/releases Added Reference https://www.ebryx.com/blogs/exploring-cve-2024-50608-and-cve-2024-50609
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-50609 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-50609
weaknesses.