Buffer overflow in Envoyproxy Envoy
CVE-2019-18801
An issue was discovered in Envoy 1.12.0. An untrusted remote client may send HTTP/2 requests that write to the heap outside of the request buffers when the upstream is HTTP/1. This may be used to corrupt nearby heap contents (leading to a…
Vulnerability class: Buffer Overflow
EPSS: 0.025 (83.0th 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
- Envoyproxy Envoy
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Patch, x_refsource_MISC)
- cve@mitre.org (x_refsource_MISC)
- cve@mitre.org (Product, x_refsource_MISC)
- cve@mitre.org (x_refsource_CONFIRM, Exploit, Third Party Advisory)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2019-18801?
- CVE-2019-18801 is a critical-severity vulnerability in Envoyproxy Envoy, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2019-12-13.
- How severe is CVE-2019-18801?
- Critical severity. CVSS v3 base score is 9.8 out of 10.