High · published November 24, 2025
⚡ A buffer overflow lurking in the Fluent Bit in_docker input plugin could let attackers crash your service or run arbitrary code — all thanks to unchecked container names! 🔥 Think of it like a restaurant where the waitstaff can only take orders for a set number of characters in a dish name. If a chef submits a ridiculously long name, it not only confuses the staff but could also cause the whole kitchen to crash! An attacker controlling container names could exploit this flaw to overflow the buffer, leading to process crashes or even arbitrary code execution. This means they could potentially gain control of your system, making this vulnerability a high-stakes risk for any operation using Fluent Bit.
Think of it like a restaurant where the waitstaff can only take orders for a set number of characters in a dish name. If a chef submits a ridiculously long name, it not only confuses the staff but could also cause the whole kitchen to crash! The vulnerability occurs in the extract_name function, which copies container names into a fixed-size stack buffer without validating their length, allowing for a buffer overflow condition.
An attacker controlling container names could exploit this flaw to overflow the buffer, leading to process crashes or even arbitrary code execution. This means they could potentially gain control of your system, making this vulnerability a high-stakes risk for any operation using Fluent Bit. To protect yourself, update Fluent Bit to the latest version that addresses this issue. Additionally, consider implementing input validation to restrict container name lengths and audit your container naming policies. You’ve got this! Patch up, and you’ll be fortified against this sneaky overflow. 🛡️
| Product | Versions | Fixed in |
|---|---|---|
| treasuredata/fluent_bit | all versions | — |