Vulnerability RUSTSEC-2024-0003

Unknown
UNKNOWN RISK
Vulnerabilities without an assigned CVSS score. Severity is not determinable from available data.
2 years ago
January 17, 2024 at 12:00 PM UTC
Resource exhaustion vulnerability in h2 may lead to Denial of Service (DoS)
0.0.0 - 0.1.26 and 0.2.0 - 0.3.23
0.0.0 - 0.1.26 and 0.2.0 - 0.3.23

Summary

Resource exhaustion vulnerability in h2 may lead to Denial of Service (DoS)

Details

An attacker with an HTTP/2 connection to an affected endpoint can send a steady stream of invalid frames to force the generation of reset frames on the victim endpoint. By closing their recv window, the attacker could then force these resets to be queued in an unbounded fashion, resulting in Out Of Memory (OOM) and high CPU usage.

This fix is corrected in hyperium/h2#737, which limits the total number of internal error resets emitted by default before the connection is closed.

Impacted packages

Timeline

Published
2 years ago
January 17, 2024 at 12:00 PM UTC
Fixed (0.3.24)
2 years ago
January 17, 2024 at 07:56 PM UTC
Fixed (0.4.2)
2 years ago
January 17, 2024 at 07:58 PM UTC
Last Modified
8 months ago
February 04, 2026 at 03:15 AM UTC