RHBA-2021:2955
Vulnerability from csaf_redhat - Published: 2021-07-29 17:36 - Updated: 2026-01-13 21:16Summary
Red Hat Bug Fix Advisory: Red Hat Automation Platform 1.2.4
Severity
Important
Notes
Topic: An update is now available for Red Hat Automation Platform 1.2.4.
Details: Red Hat Ansible Automation Platform integrates Red Hat’s automation suite
consisting of Red Hat Ansible Tower, Red Hat Ansible Engine, and use-case
specific capabilities for Microsoft Windows,network, security, and more,
along with Software-as-a-Service (SaaS)-based capabilities and features for
organization-wide effectiveness.
This update fixes various bugs and adds enhancements. Documentation for
these changes is available from the Release Notes document linked to 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.
A flaw was found in nginx. An off-by-one error while processing DNS responses allows a network attacker to write a dot character out of bounds in a heap allocated buffer which can allow overwriting the least significant byte of next heap chunk metadata likely leading to a remote code execution in certain circumstances. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
8.1 (High)
Affected products
Fixed
12 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-Automation-Hub-4.2:automation-hub-0:4.2.5-1.el7pc.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-Automation-Hub-4.2:automation-hub-0:4.2.5-1.el7pc.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-Automation-Hub-4.2:python-galaxy-ng-0:4.2.5-2.el7pc.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-Automation-Hub-4.2:python-pulpcore-0:3.7.6-1.el7pc.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-Automation-Hub-4.2:python3-galaxy-ng-0:4.2.5-2.el7pc.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-Automation-Hub-4.2:python3-pulpcore-0:3.7.6-1.el7pc.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 8Base-Automation-Hub-4.2:automation-hub-0:4.2.5-1.el8pc.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 8Base-Automation-Hub-4.2:automation-hub-0:4.2.5-1.el8pc.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 8Base-Automation-Hub-4.2:python-galaxy-ng-0:4.2.5-2.el8pc.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 8Base-Automation-Hub-4.2:python-pulpcore-0:3.7.6-1.el8pc.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 8Base-Automation-Hub-4.2:python3-galaxy-ng-0:4.2.5-2.el8pc.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 8Base-Automation-Hub-4.2:python3-pulpcore-0:3.7.6-1.el8pc.noarch | — |
Vendor Fix
fix
|
Threats
Impact
Important
References
7 references
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"vulnerabilities": [
{
"cve": "CVE-2021-23017",
"cwe": {
"id": "CWE-193",
"name": "Off-by-one Error"
},
"discovery_date": "2021-05-19T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1963121"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in nginx. An off-by-one error while processing DNS responses allows a network attacker to write a dot character out of bounds in a heap allocated buffer which can allow overwriting the least significant byte of next heap chunk metadata likely leading to a remote code execution in certain circumstances. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "nginx: Off-by-one in ngx_resolver_copy() when labels are followed by a pointer to a root domain name",
"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"
}
],
"product_status": {
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},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2021-23017"
},
{
"category": "external",
"summary": "RHBZ#1963121",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1963121"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2021-23017",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-23017"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-23017",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-23017"
}
],
"release_date": "2021-05-25T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2021-07-29T17:36:24+00:00",
"details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"7Server-Automation-Hub-4.2:automation-hub-0:4.2.5-1.el7pc.src",
"7Server-Automation-Hub-4.2:python-galaxy-ng-0:4.2.5-2.el7pc.src",
"7Server-Automation-Hub-4.2:python-pulpcore-0:3.7.6-1.el7pc.src",
"7Server-Automation-Hub-4.2:python3-galaxy-ng-0:4.2.5-2.el7pc.noarch",
"7Server-Automation-Hub-4.2:python3-pulpcore-0:3.7.6-1.el7pc.noarch",
"8Base-Automation-Hub-4.2:automation-hub-0:4.2.5-1.el8pc.noarch",
"8Base-Automation-Hub-4.2:automation-hub-0:4.2.5-1.el8pc.src",
"8Base-Automation-Hub-4.2:python-galaxy-ng-0:4.2.5-2.el8pc.src",
"8Base-Automation-Hub-4.2:python-pulpcore-0:3.7.6-1.el8pc.src",
"8Base-Automation-Hub-4.2:python3-galaxy-ng-0:4.2.5-2.el8pc.noarch",
"8Base-Automation-Hub-4.2:python3-pulpcore-0:3.7.6-1.el8pc.noarch"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHBA-2021:2955"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"products": [
"7Server-Automation-Hub-4.2:automation-hub-0:4.2.5-1.el7pc.noarch",
"7Server-Automation-Hub-4.2:automation-hub-0:4.2.5-1.el7pc.src",
"7Server-Automation-Hub-4.2:python-galaxy-ng-0:4.2.5-2.el7pc.src",
"7Server-Automation-Hub-4.2:python-pulpcore-0:3.7.6-1.el7pc.src",
"7Server-Automation-Hub-4.2:python3-galaxy-ng-0:4.2.5-2.el7pc.noarch",
"7Server-Automation-Hub-4.2:python3-pulpcore-0:3.7.6-1.el7pc.noarch",
"8Base-Automation-Hub-4.2:automation-hub-0:4.2.5-1.el8pc.noarch",
"8Base-Automation-Hub-4.2:automation-hub-0:4.2.5-1.el8pc.src",
"8Base-Automation-Hub-4.2:python-galaxy-ng-0:4.2.5-2.el8pc.src",
"8Base-Automation-Hub-4.2:python-pulpcore-0:3.7.6-1.el8pc.src",
"8Base-Automation-Hub-4.2:python3-galaxy-ng-0:4.2.5-2.el8pc.noarch",
"8Base-Automation-Hub-4.2:python3-pulpcore-0:3.7.6-1.el8pc.noarch"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "nginx: Off-by-one in ngx_resolver_copy() when labels are followed by a pointer to a root domain name"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
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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