FKIE_CVE-2011-2928
Vulnerability from fkie_nvd - Published: 2011-08-29 17:55 - Updated: 2026-06-16 23:32
Severity
Summary
The befs_follow_link function in fs/befs/linuxvfs.c in the Linux kernel before 3.1-rc3 does not validate the length attribute of long symlinks, which allows local users to cause a denial of service (incorrect pointer dereference and OOPS) by accessing a long symlink on a malformed Be filesystem.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | 3.1 | |
| linux | linux_kernel | 3.1 | |
| linux | linux_kernel | 3.1 |
{
"affected": [
{
"affectedData": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"source": "secalert@redhat.com"
}
],
"configurations": [
{
"nodes": [
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"matchCriteriaId": "156989A4-23D9-434A-B512-9C0F3583D13D",
"versionEndExcluding": "3.1",
"vulnerable": true
},
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],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The befs_follow_link function in fs/befs/linuxvfs.c in the Linux kernel before 3.1-rc3 does not validate the length attribute of long symlinks, which allows local users to cause a denial of service (incorrect pointer dereference and OOPS) by accessing a long symlink on a malformed Be filesystem."
},
{
"lang": "es",
"value": "La funci\u00f3n befs_follow_link en fs/befs/linuxvfs.c en el Kernel de Linux anterior a v 3.1-rc3 no valida el atributo longitud de enlaces simb\u00f3licos, lo que permite a usuarios locales provocar una denegaci\u00f3n de servicio (desreferencia a puntero incorrecta y OOPS) accediendo a un largo enlace simb\u00f3lico en un fichero de sistema mal formados."
}
],
"id": "CVE-2011-2928",
"lastModified": "2026-06-16T23:32:16.140",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 4.9,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C",
"version": "2.0"
},
"exploitabilityScore": 3.9,
"impactScore": 6.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2011-08-29T17:55:00.830",
"references": [
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"url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=338d0f0a6fbc82407864606f5b64b75aeb3c70f2"
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{
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"tags": [
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"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/69343"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=338d0f0a6fbc82407864606f5b64b75aeb3c70f2"
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{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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"url": "http://www.pre-cert.de/advisories/PRE-SA-2011-06.txt"
},
{
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},
{
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{
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"tags": [
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"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/69343"
}
],
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-476"
}
],
"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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