FKIE_CVE-2006-4573
Vulnerability from fkie_nvd - Published: 2006-10-24 18:07 - Updated: 2026-06-16 22:29
Severity
Summary
Multiple unspecified vulnerabilities in the "utf8 combining characters handling" (utf8_handle_comb function in encoding.c) in screen before 4.0.3 allows user-assisted attackers to cause a denial of service (crash or hang) via certain UTF8 sequences.
References
{
"affected": [
{
"affectedData": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"source": "secalert@redhat.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
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"criteria": "cpe:2.3:a:gnu:screen:*:*:*:*:*:*:*:*",
"matchCriteriaId": "EB4ADD67-7FCD-4034-8F6A-32F579104659",
"versionEndIncluding": "4.0.2",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
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"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Multiple unspecified vulnerabilities in the \"utf8 combining characters handling\" (utf8_handle_comb function in encoding.c) in screen before 4.0.3 allows user-assisted attackers to cause a denial of service (crash or hang) via certain UTF8 sequences."
},
{
"lang": "es",
"value": "M\u00faltiples vulnerabilidades no especificadas en el \"manejo de combinaciones de caracteres utf8\" (funci\u00f3n utf8_handle_comb en encoding.c) en screen anterior a 4.0.3 permite a atacantes con la complicidad del usuario provocar una denegaci\u00f3n de servicio (ca\u00edda o cuelgue) mediante ciertas secuencias UTF8."
}
],
"id": "CVE-2006-4573",
"lastModified": "2026-06-16T22:29:22.570",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "LOW",
"cvssData": {
"accessComplexity": "HIGH",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 2.6,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:H/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 4.9,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": true
}
]
},
"published": "2006-10-24T18:07:00.000",
"references": [
{
"source": "secalert@redhat.com",
"url": "http://docs.info.apple.com/article.html?artnum=305530"
},
{
"source": "secalert@redhat.com",
"url": "http://lists.apple.com/archives/security-announce/2007/May/msg00004.html"
},
{
"source": "secalert@redhat.com",
"tags": [
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],
"url": "http://lists.gnu.org/archive/html/screen-users/2006-10/msg00028.html"
},
{
"source": "secalert@redhat.com",
"url": "http://secunia.com/advisories/22573"
},
{
"source": "secalert@redhat.com",
"url": "http://secunia.com/advisories/22583"
},
{
"source": "secalert@redhat.com",
"url": "http://secunia.com/advisories/22611"
},
{
"source": "secalert@redhat.com",
"url": "http://secunia.com/advisories/22647"
},
{
"source": "secalert@redhat.com",
"url": "http://secunia.com/advisories/22649"
},
{
"source": "secalert@redhat.com",
"url": "http://secunia.com/advisories/22707"
},
{
"source": "secalert@redhat.com",
"url": "http://secunia.com/advisories/22726"
},
{
"source": "secalert@redhat.com",
"url": "http://secunia.com/advisories/25402"
},
{
"source": "secalert@redhat.com",
"url": "http://security.gentoo.org/glsa/glsa-200611-01.xml"
},
{
"source": "secalert@redhat.com",
"url": "http://slackware.com/security/viewer.php?l=slackware-security\u0026y=2006\u0026m=slackware-security.480775"
},
{
"source": "secalert@redhat.com",
"url": "http://www.debian.org/security/2006/dsa-1202"
},
{
"source": "secalert@redhat.com",
"url": "http://www.mandriva.com/security/advisories?name=MDKSA-2006:191"
},
{
"source": "secalert@redhat.com",
"url": "http://www.openpkg.org/security/advisories/OpenPKG-SA-2006.026-screen.html"
},
{
"source": "secalert@redhat.com",
"url": "http://www.securityfocus.com/bid/20727"
},
{
"source": "secalert@redhat.com",
"url": "http://www.ubuntu.com/usn/usn-370-1"
},
{
"source": "secalert@redhat.com",
"url": "http://www.vupen.com/english/advisories/2006/4189"
},
{
"source": "secalert@redhat.com",
"url": "http://www.vupen.com/english/advisories/2007/1939"
},
{
"source": "secalert@redhat.com",
"url": "https://issues.rpath.com/browse/RPL-734"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://docs.info.apple.com/article.html?artnum=305530"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://lists.apple.com/archives/security-announce/2007/May/msg00004.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "http://lists.gnu.org/archive/html/screen-users/2006-10/msg00028.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://secunia.com/advisories/22573"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://secunia.com/advisories/22583"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://secunia.com/advisories/22611"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://secunia.com/advisories/22647"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://secunia.com/advisories/22649"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://secunia.com/advisories/22707"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://secunia.com/advisories/22726"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://secunia.com/advisories/25402"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://security.gentoo.org/glsa/glsa-200611-01.xml"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://slackware.com/security/viewer.php?l=slackware-security\u0026y=2006\u0026m=slackware-security.480775"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.debian.org/security/2006/dsa-1202"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.mandriva.com/security/advisories?name=MDKSA-2006:191"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.openpkg.org/security/advisories/OpenPKG-SA-2006.026-screen.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.securityfocus.com/bid/20727"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.ubuntu.com/usn/usn-370-1"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.vupen.com/english/advisories/2006/4189"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.vupen.com/english/advisories/2007/1939"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://issues.rpath.com/browse/RPL-734"
}
],
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Modified",
"weaknesses": [
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"description": [
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"lang": "en",
"value": "NVD-CWE-Other"
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],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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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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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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