Integer overflow in Envoyproxy Envoy
CVE-2021-28682
An issue was discovered in Envoy through 1.71.1. There is a remotely exploitable integer overflow in which a very large grpc-timeout value leads to unexpected timeout calculations.
Vulnerability class: Integer Overflow
EPSS: 0.020 (79.1th percentile) — read the EPSS interpretation.
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.
Affected products
- Envoyproxy Envoy — versions 1.14.6, 1.15.3, 1.16.2
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
- nvd@nist.gov (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-28682?
- CVE-2021-28682 is a high-severity vulnerability in Envoyproxy Envoy, classified under Integer Overflow or Wraparound. CVSS score: 7.5/10. Published 2021-05-20.
- How severe is CVE-2021-28682?
- High severity. CVSS v3 base score is 7.5 out of 10.