CVE-2019-12995

HIGH

Istio < 1.2.2 - Denial of Service via JWT Authentication Segmentation Fault

Title source: llm

Description

Istio before 1.2.2 mishandles certain access tokens, leading to "Epoch 0 terminated with an error" in Envoy. This is related to a jwt_authenticator.cc segmentation fault.

References (3)

Core 3

Core References

Release Notes, Vendor Advisory x_refsource_misc

https://istio.io/about/notes/

Third Party Advisory x_refsource_misc

https://github.com/istio/istio/issues/15084

Third Party Advisory x_refsource_misc

https://github.com/istio/istio.io/pull/4555

Scores

CVSS v3 7.5

EPSS 0.0219

EPSS Percentile 80.2%

Attack Vector NETWORK

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE

CWE-476

Status published

Products (1)

istio/istio < 1.2.2

Published Jun 28, 2019

Tracked Since Feb 18, 2026