Ill-formed headers may lead to unexpected behavior in Istio
CVE-2022-31045

7HIGH

Key Information:

Vendor

Istio

Status
Istio
Vendor
CVE Published:
9 June 2022

What is CVE-2022-31045?

Istio is an open platform to connect, manage, and secure microservices. In affected versions ill-formed headers sent to Envoy in certain configurations can lead to unexpected memory access resulting in undefined behavior or crashing. Users are most likely at risk if they have an Istio ingress Gateway exposed to external traffic. This vulnerability has been resolved in versions 1.12.8, 1.13.5, and 1.14.1. Users are advised to upgrade. There are no known workarounds for this issue.

Affected Version(s)

istio < 1.12.18 < 1.12.18

istio >= 1.13.0, < 1.13.5 < 1.13.0, 1.13.5

istio >= 1.14.0, < 1.14.1 < 1.14.0, 1.14.1

References

https://github.com/istio/istio/security/advisories/GHSA-x...
x_refsource_CONFIRM
https://istio.io/latest/news/security/istio-security-2022-05
x_refsource_MISC

CVSS V3.1

Score:
7
Severity:
HIGH
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.