RHBA-2022:8290
Vulnerability from csaf_redhat - Published: 2022-11-15 11:58 - Updated: 2025-12-09 09:11Summary
Red Hat Bug Fix Advisory: expat bug fix and enhancement update
Severity
Moderate
Notes
Topic: An update for expat is now available for Red Hat Enterprise Linux 9.
Details: For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.1 Release Notes linked from 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.
expat before version 2.4.0 does not properly handle entities expansion unless an application developer uses the XML_SetEntityDeclHandler function, which allows remote attackers to cause a denial of service (resource consumption), send HTTP requests to intranet servers, or read arbitrary files via a crafted XML document, aka an XML External Entity (XXE) issue. NOTE: it could be argued that because expat already provides the ability to disable external entity expansion, the responsibility for resolving this issue lies with application developers; according to this argument, this entry should be REJECTed, and each affected application would need its own CVE.
4.3 ()
Affected products
Fixed
42 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: AppStream-9.1.0.GA:expat-0:2.4.9-1.el9_1.aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: AppStream-9.1.0.GA:expat-0:2.4.9-1.el9_1.i686 | — |
Vendor Fix
fix
|
|
| Unresolved product id: AppStream-9.1.0.GA:expat-0:2.4.9-1.el9_1.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: AppStream-9.1.0.GA:expat-0:2.4.9-1.el9_1.s390x | — |
Vendor Fix
fix
|
|
| Unresolved product id: AppStream-9.1.0.GA:expat-0:2.4.9-1.el9_1.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: AppStream-9.1.0.GA:expat-0:2.4.9-1.el9_1.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: AppStream-9.1.0.GA:expat-debuginfo-0:2.4.9-1.el9_1.aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: AppStream-9.1.0.GA:expat-debuginfo-0:2.4.9-1.el9_1.i686 | — |
Vendor Fix
fix
|
|
| Unresolved product id: AppStream-9.1.0.GA:expat-debuginfo-0:2.4.9-1.el9_1.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: AppStream-9.1.0.GA:expat-debuginfo-0:2.4.9-1.el9_1.s390x | — |
Vendor Fix
fix
|
|
| Unresolved product id: AppStream-9.1.0.GA:expat-debuginfo-0:2.4.9-1.el9_1.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: AppStream-9.1.0.GA:expat-debugsource-0:2.4.9-1.el9_1.aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: AppStream-9.1.0.GA:expat-debugsource-0:2.4.9-1.el9_1.i686 | — |
Vendor Fix
fix
|
|
| Unresolved product id: AppStream-9.1.0.GA:expat-debugsource-0:2.4.9-1.el9_1.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: AppStream-9.1.0.GA:expat-debugsource-0:2.4.9-1.el9_1.s390x | — |
Vendor Fix
fix
|
|
| Unresolved product id: AppStream-9.1.0.GA:expat-debugsource-0:2.4.9-1.el9_1.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: AppStream-9.1.0.GA:expat-devel-0:2.4.9-1.el9_1.aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: AppStream-9.1.0.GA:expat-devel-0:2.4.9-1.el9_1.i686 | — |
Vendor Fix
fix
|
|
| Unresolved product id: AppStream-9.1.0.GA:expat-devel-0:2.4.9-1.el9_1.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: AppStream-9.1.0.GA:expat-devel-0:2.4.9-1.el9_1.s390x | — |
Vendor Fix
fix
|
|
| Unresolved product id: AppStream-9.1.0.GA:expat-devel-0:2.4.9-1.el9_1.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.1.0.GA:expat-0:2.4.9-1.el9_1.aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.1.0.GA:expat-0:2.4.9-1.el9_1.i686 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.1.0.GA:expat-0:2.4.9-1.el9_1.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.1.0.GA:expat-0:2.4.9-1.el9_1.s390x | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.1.0.GA:expat-0:2.4.9-1.el9_1.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.1.0.GA:expat-0:2.4.9-1.el9_1.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.1.0.GA:expat-debuginfo-0:2.4.9-1.el9_1.aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.1.0.GA:expat-debuginfo-0:2.4.9-1.el9_1.i686 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.1.0.GA:expat-debuginfo-0:2.4.9-1.el9_1.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.1.0.GA:expat-debuginfo-0:2.4.9-1.el9_1.s390x | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.1.0.GA:expat-debuginfo-0:2.4.9-1.el9_1.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.1.0.GA:expat-debugsource-0:2.4.9-1.el9_1.aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.1.0.GA:expat-debugsource-0:2.4.9-1.el9_1.i686 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.1.0.GA:expat-debugsource-0:2.4.9-1.el9_1.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.1.0.GA:expat-debugsource-0:2.4.9-1.el9_1.s390x | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.1.0.GA:expat-debugsource-0:2.4.9-1.el9_1.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.1.0.GA:expat-devel-0:2.4.9-1.el9_1.aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.1.0.GA:expat-devel-0:2.4.9-1.el9_1.i686 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.1.0.GA:expat-devel-0:2.4.9-1.el9_1.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.1.0.GA:expat-devel-0:2.4.9-1.el9_1.s390x | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.1.0.GA:expat-devel-0:2.4.9-1.el9_1.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
References
8 references
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"text": "expat before version 2.4.0 does not properly handle entities expansion unless an application developer uses the XML_SetEntityDeclHandler function, which allows remote attackers to cause a denial of service (resource consumption), send HTTP requests to intranet servers, or read arbitrary files via a crafted XML document, aka an XML External Entity (XXE) issue. NOTE: it could be argued that because expat already provides the ability to disable external entity expansion, the responsibility for resolving this issue lies with application developers; according to this argument, this entry should be REJECTed, and each affected application would need its own CVE.",
"title": "Vulnerability description"
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"text": "expat: internal entity expansion",
"title": "Vulnerability summary"
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{
"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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},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2013-0340"
},
{
"category": "external",
"summary": "RHBZ#1000109",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1000109"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2013-0340",
"url": "https://www.cve.org/CVERecord?id=CVE-2013-0340"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2013-0340",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2013-0340"
}
],
"release_date": "2013-02-19T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2022-11-15T11:58:10+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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"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHBA-2022:8290"
}
],
"scores": [
{
"cvss_v2": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 4.3,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
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}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "expat: internal entity expansion"
}
]
}
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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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