CVE Vulnerabilities

CVE-2019-12995

NULL Pointer Dereference

Published: Jun 28, 2019 | Modified: Aug 24, 2020
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
Ubuntu

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.

Weakness

A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.

Affected Software

Name Vendor Start Version End Version
Istio Istio * 1.2.2 (excluding)

Potential Mitigations

References