Medium severity5.3NVD Advisory· Published Dec 5, 2023· Updated Jun 17, 2026
CVE-2023-6180
CVE-2023-6180
Description
The tokio-boring library in version 4.0.0 is affected by a memory leak issue that can lead to excessive resource consumption and potential DoS by resource exhaustion. The set_ex_data function used by the library did not deallocate memory used by pre-existing data in memory each time after completing a TLS connection causing the program to consume more resources with each new connection.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
tokio-boringcrates.io | >= 4.0.0, < 4.1.0 | 4.1.0 |
Affected products
3- cpe:2.3:a:cloudflare:boring:4.0.0:*:*:*:*:rust:*:*
- Range: 4.0.0
Patches
Vulnerability mechanics
References
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