FKIE_CVE-2007-4990
Vulnerability from fkie_nvd - Published: 2007-10-05 21:17 - Updated: 2025-04-09 00:30
Severity ?
Summary
The swap_char2b function in X.Org X Font Server (xfs) before 1.0.5 allows context-dependent attackers to execute arbitrary code via (1) QueryXBitmaps and (2) QueryXExtents protocol requests with crafted size values that specify an arbitrary number of bytes to be swapped on the heap, which triggers heap corruption.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| x.org | x_font_server | * |
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
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"criteria": "cpe:2.3:a:x.org:x_font_server:*:*:*:*:*:*:*:*",
"matchCriteriaId": "B59B2204-181D-4F87-ACFD-55863DD82311",
"versionEndIncluding": "1.0.4",
"vulnerable": true
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"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The swap_char2b function in X.Org X Font Server (xfs) before 1.0.5 allows context-dependent attackers to execute arbitrary code via (1) QueryXBitmaps and (2) QueryXExtents protocol requests with crafted size values that specify an arbitrary number of bytes to be swapped on the heap, which triggers heap corruption."
},
{
"lang": "es",
"value": "La funci\u00f3n swap_char2b de X.Org X Font Server (xfs) anterior a 1.0.5 permite a atacantes locales o remotos (dependiendo del contexto) ejecutar c\u00f3digo de su elecci\u00f3n mediante peticiones de protocolo (1) QueryXBitmaps y (2) QueryXExtents con valores de tama\u00f1o manipulados que especifican un n\u00famero arbitrario de bytes para ser intercambiados en el mont\u00edculo, lo que produce una corrupci\u00f3n del mont\u00edculo."
}
],
"id": "CVE-2007-4990",
"lastModified": "2025-04-09T00:30:58.490",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "HIGH",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 7.5,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": true,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
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},
"published": "2007-10-05T21:17:00.000",
"references": [
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"url": "http://www.securityfocus.com/archive/1/481432/100/0/threaded"
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"url": "http://secunia.com/advisories/27228"
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"url": "http://secunia.com/advisories/27240"
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"url": "http://www.vupen.com/english/advisories/2008/0924/references"
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{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/36920"
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{
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"url": "https://issues.rpath.com/browse/RPL-1756"
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"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11599"
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{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://www.redhat.com/archives/fedora-package-announce/2007-December/msg00352.html"
}
],
"sourceIdentifier": "cve@mitre.org",
"vendorComments": [
{
"comment": "Red Hat is aware of this issue and is tracking it via the following bug: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=CVE-2007-4990\n\nThe Red Hat Security Response Team has rated this issue as having low security impact, a future update may address this flaw.",
"lastModified": "2007-10-08T00:00:00",
"organization": "Red Hat"
}
],
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-189"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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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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