CVE-2024-39305 (GCVE-0-2024-39305)
Vulnerability from cvelistv5 – Published: 2024-07-01 21:10 – Updated: 2024-08-02 04:19
VLAI?
Title
Envoy Proxy use after free when route hash policy is configured with cookie attributes
Summary
Envoy is a cloud-native, open source edge and service proxy. Prior to versions 1.30.4, 1.29.7, 1.28.5, and 1.27.7. Envoy references already freed memory when route hash policy is configured with cookie attributes. Note that this vulnerability has been fixed in the open as the effect would be immediately apparent if it was configured. Memory allocated for holding attribute values is freed after configuration was parsed. During request processing Envoy will attempt to copy content of de-allocated memory into request cookie header. This can lead to arbitrary content of Envoy's memory to be sent to the upstream service or abnormal process termination. This vulnerability is fixed in Envoy versions v1.30.4, v1.29.7, v1.28.5, and v1.27.7. As a workaround, do not use cookie attributes in route action hash policy.
Severity ?
6.5 (Medium)
CWE
- CWE-416 - Use After Free
Assigner
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| envoyproxy | envoy |
Affected:
>= 1.30.0, < 1.30.4
Affected: >= 1.29.0, < 1.29.7 Affected: >= 1.28.0, < 1.28.5 Affected: < 1.27.7 |
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}
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"attackVector": "NETWORK",
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"title": "Envoy Proxy use after free when route hash policy is configured with cookie attributes"
}
},
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},
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"vulnerability-lookup:meta": {
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}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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