RHSA-2021:1322
Vulnerability from csaf_redhat - Published: 2021-04-22 09:03 - Updated: 2026-03-18 02:06Summary
Red Hat Security Advisory: Red Hat OpenShift Service Mesh 1.1.13 security update
Severity
Important
Notes
Topic: An update for servicemesh and servicemesh-proxy is now available for OpenShift Service Mesh 1.1.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: Red Hat OpenShift Service Mesh is Red Hat's distribution of the Istio service mesh project, tailored for installation into an on-premise OpenShift Container Platform installation.
Security Fix(es):
* envoyproxy/envoy: integer overflow handling large grpc-timeouts (CVE-2021-28682)
* envoyproxy/envoy: NULL pointer dereference in TLS alert code handling (CVE-2021-28683)
* envoyproxy/envoy: crash with empty HTTP/2 metadata map (CVE-2021-29258)
* istio-pilot: requests to debug api can result in panic (CVE-2019-25014)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
An out-of-bounds read flaw was found in istio-pilot. This flaw allows an attacker to send a crafted HTTP GET request to the pilot debug API endpoint. This action causes pilot to panic, resulting in a denial of service to the istio pilot application. The highest threat from this vulnerability is to system availability.
6.5 (Medium)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2021:1322
A flaw was found in envoyproxy/envoy. An attacker, able to craft a packet which specifies a large grpc-timeout, can potentially cause envoy to incorrectly calculate the timeouts resulting in a denial of service. The highest threat from this vulnerability is to system availability.
7.5 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2021:1322
A NULL pointer dereference vulnerability was found envoyproxy/envoy. This flaw allows an attacker to establish a TLS session that sends an invalid TLS alert code, causing a NULL pointer exception to occur that crashes the application, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
7.5 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2021:1322
A flaw was found in envoyproxy. An attacker, able to craft an HTTP2 request that specifies an empty metadata map, can crash envoy resulting in a denial of service due to the null reference. The highest threat from this vulnerability is to system availability.
7.5 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2021:1322
References
Acknowledgments
the Envoy security team
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"text": "An out-of-bounds read flaw was found in istio-pilot. This flaw allows an attacker to send a crafted HTTP GET request to the pilot debug API endpoint. This action causes pilot to panic, resulting in a denial of service to the istio pilot application. The highest threat from this vulnerability is to system availability.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "istio-pilot: requests to debug api can result in panic",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
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"title": "Vulnerability description"
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{
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"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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}
],
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{
"category": "description",
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{
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},
{
"category": "general",
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{
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}
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{
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{
"category": "general",
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"products": [
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"8Base-OSSM-1.1:servicemesh-0:1.1.13-3.el8.s390x",
"8Base-OSSM-1.1:servicemesh-0:1.1.13-3.el8.src",
"8Base-OSSM-1.1:servicemesh-0:1.1.13-3.el8.x86_64",
"8Base-OSSM-1.1:servicemesh-citadel-0:1.1.13-3.el8.ppc64le",
"8Base-OSSM-1.1:servicemesh-citadel-0:1.1.13-3.el8.s390x",
"8Base-OSSM-1.1:servicemesh-citadel-0:1.1.13-3.el8.x86_64",
"8Base-OSSM-1.1:servicemesh-galley-0:1.1.13-3.el8.ppc64le",
"8Base-OSSM-1.1:servicemesh-galley-0:1.1.13-3.el8.s390x",
"8Base-OSSM-1.1:servicemesh-galley-0:1.1.13-3.el8.x86_64",
"8Base-OSSM-1.1:servicemesh-istioctl-0:1.1.13-3.el8.ppc64le",
"8Base-OSSM-1.1:servicemesh-istioctl-0:1.1.13-3.el8.s390x",
"8Base-OSSM-1.1:servicemesh-istioctl-0:1.1.13-3.el8.x86_64",
"8Base-OSSM-1.1:servicemesh-mixc-0:1.1.13-3.el8.ppc64le",
"8Base-OSSM-1.1:servicemesh-mixc-0:1.1.13-3.el8.s390x",
"8Base-OSSM-1.1:servicemesh-mixc-0:1.1.13-3.el8.x86_64",
"8Base-OSSM-1.1:servicemesh-mixs-0:1.1.13-3.el8.ppc64le",
"8Base-OSSM-1.1:servicemesh-mixs-0:1.1.13-3.el8.s390x",
"8Base-OSSM-1.1:servicemesh-mixs-0:1.1.13-3.el8.x86_64",
"8Base-OSSM-1.1:servicemesh-pilot-agent-0:1.1.13-3.el8.ppc64le",
"8Base-OSSM-1.1:servicemesh-pilot-agent-0:1.1.13-3.el8.s390x",
"8Base-OSSM-1.1:servicemesh-pilot-agent-0:1.1.13-3.el8.x86_64",
"8Base-OSSM-1.1:servicemesh-pilot-discovery-0:1.1.13-3.el8.ppc64le",
"8Base-OSSM-1.1:servicemesh-pilot-discovery-0:1.1.13-3.el8.s390x",
"8Base-OSSM-1.1:servicemesh-pilot-discovery-0:1.1.13-3.el8.x86_64",
"8Base-OSSM-1.1:servicemesh-proxy-0:1.1.13-1.el8.ppc64le",
"8Base-OSSM-1.1:servicemesh-proxy-0:1.1.13-1.el8.s390x",
"8Base-OSSM-1.1:servicemesh-proxy-0:1.1.13-1.el8.src",
"8Base-OSSM-1.1:servicemesh-proxy-0:1.1.13-1.el8.x86_64",
"8Base-OSSM-1.1:servicemesh-sidecar-injector-0:1.1.13-3.el8.ppc64le",
"8Base-OSSM-1.1:servicemesh-sidecar-injector-0:1.1.13-3.el8.s390x",
"8Base-OSSM-1.1:servicemesh-sidecar-injector-0:1.1.13-3.el8.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "envoyproxy/envoy: crash with empty HTTP/2 metadata map"
}
]
}
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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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