SB2019062817 - Input validation error in Istio Istio
Published: June 28, 2019 Updated: July 17, 2020
Security Bulletin ID
SB2019062817
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2019-12995)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
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.
Remediation
Install update from vendor's website.