PT-2019-13076 · Istio+1 · Istio+1

Divya21Raj · Published 2019-06-28 · Updated 2020-08-24 · CVE-2019-12995

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Istio versions prior to 1.2.2

Description The issue is related to the mishandling of certain access tokens, which can lead to an error in Envoy, specifically "Epoch 0 terminated with an error". This is caused by a segmentation fault in the jwt authenticator.cc.

Recommendations For versions prior to 1.2.2, update to version 1.2.2 or later to resolve the issue. As a temporary workaround, consider restricting access to the jwt authenticator.cc function until a patch is available.

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2019-12995

Affected Products

Envoy

Istio

References · 5

• https://istio.io/about/notes · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2019-12995 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-12995 · Security Note
• https://github.com/istio/istio/issues/15084 · Note
• https://github.com/istio/istio.io/pull/4555 · Note