Critical severity · published May 20, 2024
CVE-2024-4323
Fluent Bit Memory Corruption Vulnerability
9.8
CVSS
27.2%
EPSS
No
On KEV
Description
A memory corruption vulnerability in Fluent Bit versions 2.0.7 thru 3.0.3. This issue lies in the embedded http server’s parsing of trace requests and may result in denial of service conditions, information disclosure, or remote code execution.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)27.2% · higher than 98% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FB
Fluent Bit · Fluent Bit
2.0.7 through 3.0.3 · source: vendor, NVD, CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-4323
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-4323
Patch
https://github.com/fluent/fluent-bit/commit/9311b43a258352797af40749ab31a63c32acfd04
Patch
https://tenable.com/security/research/tra-2024-17
Exploit
https://www.vicarius.io/vsociety/posts/linguistic-lumberjack-memory-corruption-in-fluent-bit-cve-2024-4323