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CVE

CVE-2020-25574

An issue was discovered in the http crate before 0.1.20 for Rust. An integer overflow in HeaderMap::reserve() could resu

An issue was discovered in the http crate before 0.1.20 for Rust. An integer overflow in HeaderMap::reserve() could result in denial of service (e.g., an infinite loop).

HIGH · CVSS 7.5 EPSS 0.01825
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules7 YARA rules0
⬡

Weakness Classification

CWE-190Integer Overflow or Wraparound
CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')
▤

Affected Products & Versions

1
hyper http< 0.1.20
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
crates.io http HIGH fixed in 0.1.20
⚠

Public Exploits & PoCs

1
pocgithub.com · issues/352github.com
◈

Sigma Hunt Rules

7
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.
producthighOpenCanary - HTTP GET Request
producthighOpenCanary - HTTP POST Login Attempt
producthighRDP to HTTP or HTTPS Target Ports
producthighPotentially Suspicious Regsvr32 HTTP IP Pattern
producthighDisable Windows IIS HTTP Logging
producthighIE ZoneMap Setting Downgraded To MyComputer Zone For HTTP Protocols Via CLI
▣

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 NVD14 Sep 2020 · 07:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://rustsec.org/advisories/RUSTSEC-2019-0033.htmlVendor Advisory
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