Resource exhaustion in Envoyproxy Envoy

CVE-2019-15225

In Envoy through 1.11.1, users may configure a route to match incoming path headers via the libstdc++ regular expression implementation. A remote attacker may send a request with a very long URI to result in a denial of service (memory consumption). This is a related issue to CVE-2019-14993.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.034 (88.5th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 88.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2019-15225: held from 0.034 to 0.034.

EPSS over last 30 days · oldest: 0.034 · newest: 0.034 · change: +0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2019-15225?
CVE-2019-15225 is a high-severity vulnerability in Envoyproxy Envoy, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2019-08-19.
How severe is CVE-2019-15225?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2019-15225 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.