5.9

CVSS Score

3.1

-

CVSS Score

Basic Information

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CVE-2022-31045

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

Impact

Ill-formed headers sent to Envoy in certain configurations can lead to unexpected memory access resulting in undefined behavior or crashing.

You are at most risk if you have an Istio ingress Gateway exposed to external traffic.

Patches

1.12.8, 1.13.5, 1.14.1

Workarounds

No.

References

More details can be found in the Istio Security Bulletin

For more information

If you have any questions or comments about this advisory, please email us at istio-security-vulnerability-reports@googlegroups.com

(GitHub Advisory)

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CVE-2022-31045

CVE-2022-31045:

5.9

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
istio.io/istio	go	< 1.12.18	1.12.18
istio.io/istio	go	>= 1.13.0, < 1.13.5	1.13.5
istio.io/istio	go	>= 1.14.0, < 1.14.1	1.14.1

Technical Details

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Root Cause Analysis

The provided information describes a vulnerability in Istio's interaction with Envoy when processing ill-formed headers, but does not explicitly identify specific functions in the Istio codebase (istio.io/istio) responsible for the issue. The CWE-125 (Out-of-bounds Read) suggests memory safety issues, but Envoy (C++ proxy) is the component handling headers at the data plane, while Istio's Go code manages configurations. The advisory lacks commit diffs, patch details, or function names to correlate with the vulnerability. Without concrete evidence of vulnerable functions in Istio's code, we cannot confidently identify them. The vulnerability likely stems from Envoy's header parsing logic under specific Istio configurations, but this falls outside the scope of Istio's Go code functions explicitly listed in the advisory.

Vulnerable functions

Only Mi**o us*rs **n s** t*is s**tion

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WAF Protection Rules

WAF Rule

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Reasoning

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5.9

-

Basic Information

Basic Information

Concerned about an active attack path?

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

Impact

Patches

Workarounds

References

For more information

CVE-2022-31045:

5.9

-

Basic Information

Basic Information

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Technical Details

Technical Details

Vulnerability IntelligenceMiggo AI

Root Cause Analysis

Vulnerable functions

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WAF Protection Rules

WAF Rule

Reasoning

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

Impact

Patches

Workarounds

References

For more information

Vulnerability IntelligenceMiggo AI

Root Cause Analysis

Vulnerable functions

Basic Information

Basic Information

5.9

5.9

Technical Details

Vulnerability Intelligence
Miggo AI

Vulnerability Intelligence
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