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The vulnerability in the `buffered-reader` crate (versions <1.0.2 and >=1.1.0, <1.1.5) arises due to improper bounds checking when reading data into a buffer. When processing input, the crate fails to validate array indices, allowing an attacker to trigger an out-of-bounds read. This leads to a panic (unrecoverable error) in Rust, crashing the application. The issue stems from unsafe buffer handling in the `fill_buf` method, where unchecked offsets permit access beyond allocated memory. While this does not directly enable arbitrary code execution, it can cause denial-of-service conditions in applications relying on this crate for input parsing.
DailyCVE Form:
Platform: Rust (crate)
Version: <1.0.2, 1.1.0-1.1.4
Vulnerability: OOB read
Severity: Low
Date: Jul 28, 2025
Prediction: Patch available (1.1.5)
What Undercode Say:
$ cargo audit $ grep -r "fill_buf" ./src $ rustc --explain E0381
How Exploit:
- Craft oversized input
- Trigger panic via OOB read
Protection from this CVE:
- Upgrade to 1.1.5
- Use bounds-checking wrappers
Impact:
- Application crash (DoS)
- No RCE
Sources:
Reported By: github.com
Extra Source Hub:
Undercode
