5.3

GHSA-Q6CP-QFWQ-4GCV: h2 Crates.Io

Published
AliasesRUSTSEC-2024-0332
Published 03-04-2024Last modified 11-04-2024

Vulnerability summary

GHSA-Q6CP-QFWQ-4GCV is a medium (CVSS 5.3) vulnerability in h2 Crates.Io.

Priority
Routine

Not severe (CVSS 5.3, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.3/10
010
Medium · v3.1 (OSV · Crates.io), selected by version preference
EPSS scoreNot scoredRisk metrics not yet published.
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 8 · Related 5
CGA-6R4X-CWP5-J8GMCGA-9QFV-P89Q-8HG8CGA-9XW8-VJMX-FC29CGA-GQ8Q-9PJ5-8CGHCGA-J28R-7WH8-VCV5CGA-PP3R-6H9W-FG3R

Timeline

  1. 03-04-2024
    PublishedVulnerability first disclosed.
  2. 11-04-2024
    Last modifiedVulnerability information updated.

Description

Degradation of service in h2 servers with CONTINUATION Flood An attacker can send a flood of CONTINUATION frames, causing `h2` to process them indefinitely. This results in an increase in CPU usage. Tokio task budget helps prevent this from a complete denial-of-service, as the server can still respond to legitimate requests, albeit with increased latency. More details at "https://seanmonstar.com/blog/hyper-http2-continuation-flood/. Patches available for 0.4.x and 0.3.x versions.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

No EPSS score has been published for this record yet.

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Crates.Io1 product
  • h2< 0.3.26 | ≥ 0.4.0, < 0.4.4 | ≥ 0.4.0-0, < 0.4.4

1 vendor · 1 product

References

6 links