Integer overflow in Hyper HTTP
CVE-2020-25574
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).
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.025 (83.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 83.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.025 · newest: 0.025 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- rustsec.org/advisories/RUSTSEC-2019-0033.html (Vendor Advisory)
- github.com/hyperium/http/issues/352 (Exploit, Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-25574?
- CVE-2020-25574 is a high-severity vulnerability in Hyper HTTP, classified under Integer Overflow or Wraparound. CVSS score: 7.5/10. Published 2020-09-14.
- How severe is CVE-2020-25574?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2020-25574 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.