Use After Free in Isahc Project

CVE-2019-16140

An issue was discovered in the chttp crate before 0.1.3 for Rust. There is a use-after-free during buffer conversion.

Vulnerability class: Use-After-Free

EPSS: 0.016 (74.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Isahc_project Isahc — versions 0.1.2
N/a — versions n/a

Weakness classification (CWE)

CWE-416 — Use After Free

Public proof-of-concept exploits

Artisan-Lab/Rust-memory-safety-bugs

References

cve@mitre.org (Third Party Advisory)
cve@mitre.org

Frequently asked questions

What is CVE-2019-16140?: CVE-2019-16140 is a critical-severity vulnerability in Isahc Project, classified under Use After Free. CVSS score: 9.8/10. Published 2019-09-09.
How severe is CVE-2019-16140?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2019-16140 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.