Home/CVE/Hyperium Hyper before 0.14.19 does not allow for customization of the max_header_list_size method in the H2 third-party
CVE

CVE-2022-31394

Hyperium Hyper before 0.14.19 does not allow for customization of the max_header_list_size method in the H2 third-party

Hyperium Hyper before 0.14.19 does not allow for customization of the max_header_list_size method in the H2 third-party software, allowing attackers to perform HTTP2 attacks.

HIGH · CVSS 7.5 EPSS 0.00348
Act now
  • Public exploit or PoC is available
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules1 YARA rules0
⬡

Weakness Classification

CWE-770Allocation of Resources Without Limits or Throttling
CWE-770Allocation of Resources Without Limits or Throttling
▤

Affected Products & Versions

1
hyper< 0.14.19
⚠

Public Exploits & PoCs

1
pocgithub.com · 2826github.com
◈

Sigma Hunt Rules

1
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productmediumSuspicious Hyper-V Cmdlets
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD21 Feb 2023 · 02:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

11
suse-csafopenSUSE-SU-2024:12727-1
suse-csafopenSUSE-SU-2024:12728-1
suse-csafopenSUSE-SU-2024:12757-1
suse-csafopenSUSE-SU-2024:12764-1
suse-csafopenSUSE-SU-2024:12807-1
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/hyperium/hyper/compare/v0.14.18...v0.14.19Patch
https://github.com/hyperium/hyper/pull/2828Issue TrackingPatch
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