CVE-2009-4895 (GCVE-0-2009-4895)
Vulnerability from cvelistv5 – Published: 2010-09-08 19:00 – Updated: 2024-08-07 07:17
VLAI
EPSS
VEX
Summary
Race condition in the tty_fasync function in drivers/char/tty_io.c in the Linux kernel before 2.6.32.6 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via unknown vectors, related to the put_tty_queue and __f_setown functions. NOTE: the vulnerability was addressed in a different way in 2.6.32.9.
Severity
4.7 (Medium)
CWE
- n/a
Assigner
References
10 references
| URL | Tags |
|---|---|
| http://www.openwall.com/lists/oss-security/2010/06/15/5 | mailing-listx_refsource_MLIST |
| http://www.ubuntu.com/usn/USN-1000-1 | vendor-advisoryx_refsource_UBUNTU |
| https://bugzilla.kernel.org/show_bug.cgi?id=14605 | x_refsource_CONFIRM |
| http://www.kernel.org/pub/linux/kernel/v2.6/Chang… | x_refsource_CONFIRM |
| http://www.openwall.com/lists/oss-security/2010/06/15/2 | mailing-listx_refsource_MLIST |
| http://www.openwall.com/lists/oss-security/2010/06/15/3 | mailing-listx_refsource_MLIST |
| http://www.openwall.com/lists/oss-security/2010/06/15/4 | mailing-listx_refsource_MLIST |
| http://git.kernel.org/?p=linux/kernel/git/torvald… | x_refsource_CONFIRM |
| https://bugzilla.redhat.com/show_bug.cgi?id=559100 | x_refsource_CONFIRM |
| http://www.debian.org/security/2010/dsa-2094 | vendor-advisoryx_refsource_DEBIAN |
Date Public
2009-11-14 00:00
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-07T07:17:26.064Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"name": "[oss-security] 20100615 Re: CVE Request - kernel: put_tty_queue NULL pointer deref",
"tags": [
"mailing-list",
"x_refsource_MLIST",
"x_transferred"
],
"url": "http://www.openwall.com/lists/oss-security/2010/06/15/5"
},
{
"name": "USN-1000-1",
"tags": [
"vendor-advisory",
"x_refsource_UBUNTU",
"x_transferred"
],
"url": "http://www.ubuntu.com/usn/USN-1000-1"
},
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://bugzilla.kernel.org/show_bug.cgi?id=14605"
},
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.32.6"
},
{
"name": "[oss-security] 20100615 CVE Request - kernel: put_tty_queue NULL pointer deref",
"tags": [
"mailing-list",
"x_refsource_MLIST",
"x_transferred"
],
"url": "http://www.openwall.com/lists/oss-security/2010/06/15/2"
},
{
"name": "[oss-security] 20100615 Re: CVE Request - kernel: put_tty_queue NULL pointer deref",
"tags": [
"mailing-list",
"x_refsource_MLIST",
"x_transferred"
],
"url": "http://www.openwall.com/lists/oss-security/2010/06/15/3"
},
{
"name": "[oss-security] 20100615 Re: CVE Request - kernel: put_tty_queue NULL pointer deref",
"tags": [
"mailing-list",
"x_refsource_MLIST",
"x_transferred"
],
"url": "http://www.openwall.com/lists/oss-security/2010/06/15/4"
},
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=703625118069f9f8960d356676662d3db5a9d116"
},
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=559100"
},
{
"name": "DSA-2094",
"tags": [
"vendor-advisory",
"x_refsource_DEBIAN",
"x_transferred"
],
"url": "http://www.debian.org/security/2010/dsa-2094"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"datePublic": "2009-11-14T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "Race condition in the tty_fasync function in drivers/char/tty_io.c in the Linux kernel before 2.6.32.6 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via unknown vectors, related to the put_tty_queue and __f_setown functions. NOTE: the vulnerability was addressed in a different way in 2.6.32.9."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2010-09-17T09:00:00.000Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"name": "[oss-security] 20100615 Re: CVE Request - kernel: put_tty_queue NULL pointer deref",
"tags": [
"mailing-list",
"x_refsource_MLIST"
],
"url": "http://www.openwall.com/lists/oss-security/2010/06/15/5"
},
{
"name": "USN-1000-1",
"tags": [
"vendor-advisory",
"x_refsource_UBUNTU"
],
"url": "http://www.ubuntu.com/usn/USN-1000-1"
},
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://bugzilla.kernel.org/show_bug.cgi?id=14605"
},
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.32.6"
},
{
"name": "[oss-security] 20100615 CVE Request - kernel: put_tty_queue NULL pointer deref",
"tags": [
"mailing-list",
"x_refsource_MLIST"
],
"url": "http://www.openwall.com/lists/oss-security/2010/06/15/2"
},
{
"name": "[oss-security] 20100615 Re: CVE Request - kernel: put_tty_queue NULL pointer deref",
"tags": [
"mailing-list",
"x_refsource_MLIST"
],
"url": "http://www.openwall.com/lists/oss-security/2010/06/15/3"
},
{
"name": "[oss-security] 20100615 Re: CVE Request - kernel: put_tty_queue NULL pointer deref",
"tags": [
"mailing-list",
"x_refsource_MLIST"
],
"url": "http://www.openwall.com/lists/oss-security/2010/06/15/4"
},
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=703625118069f9f8960d356676662d3db5a9d116"
},
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=559100"
},
{
"name": "DSA-2094",
"tags": [
"vendor-advisory",
"x_refsource_DEBIAN"
],
"url": "http://www.debian.org/security/2010/dsa-2094"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2009-4895",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "Race condition in the tty_fasync function in drivers/char/tty_io.c in the Linux kernel before 2.6.32.6 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via unknown vectors, related to the put_tty_queue and __f_setown functions. NOTE: the vulnerability was addressed in a different way in 2.6.32.9."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "[oss-security] 20100615 Re: CVE Request - kernel: put_tty_queue NULL pointer deref",
"refsource": "MLIST",
"url": "http://www.openwall.com/lists/oss-security/2010/06/15/5"
},
{
"name": "USN-1000-1",
"refsource": "UBUNTU",
"url": "http://www.ubuntu.com/usn/USN-1000-1"
},
{
"name": "https://bugzilla.kernel.org/show_bug.cgi?id=14605",
"refsource": "CONFIRM",
"url": "https://bugzilla.kernel.org/show_bug.cgi?id=14605"
},
{
"name": "http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.32.6",
"refsource": "CONFIRM",
"url": "http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.32.6"
},
{
"name": "[oss-security] 20100615 CVE Request - kernel: put_tty_queue NULL pointer deref",
"refsource": "MLIST",
"url": "http://www.openwall.com/lists/oss-security/2010/06/15/2"
},
{
"name": "[oss-security] 20100615 Re: CVE Request - kernel: put_tty_queue NULL pointer deref",
"refsource": "MLIST",
"url": "http://www.openwall.com/lists/oss-security/2010/06/15/3"
},
{
"name": "[oss-security] 20100615 Re: CVE Request - kernel: put_tty_queue NULL pointer deref",
"refsource": "MLIST",
"url": "http://www.openwall.com/lists/oss-security/2010/06/15/4"
},
{
"name": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=703625118069f9f8960d356676662d3db5a9d116",
"refsource": "CONFIRM",
"url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=703625118069f9f8960d356676662d3db5a9d116"
},
{
"name": "https://bugzilla.redhat.com/show_bug.cgi?id=559100",
"refsource": "CONFIRM",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=559100"
},
{
"name": "DSA-2094",
"refsource": "DEBIAN",
"url": "http://www.debian.org/security/2010/dsa-2094"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2009-4895",
"datePublished": "2010-09-08T19:00:00.000Z",
"dateReserved": "2010-06-15T00:00:00.000Z",
"dateUpdated": "2024-08-07T07:17:26.064Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2009-4895",
"date": "2026-09-23",
"epss": "0.00263",
"percentile": "0.18436"
},
"nvd": {
"cve": {
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "C88967E3-724D-49A0-8831-8EB423661624",
"versionEndExcluding": "2.6.32.6",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:debian:debian_linux:5.0:*:*:*:*:*:*:*",
"matchCriteriaId": "8C757774-08E7-40AA-B532-6F705C8F7639",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:*:*:*:*",
"matchCriteriaId": "454A5D17-B171-4F1F-9E0B-F18D1E5CA9FD",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:-:*:*:*",
"matchCriteriaId": "7EBFE35C-E243-43D1-883D-4398D71763CC",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:9.04:*:*:*:*:*:*:*",
"matchCriteriaId": "A5D026D0-EF78-438D-BEDD-FC8571F3ACEB",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:9.10:*:*:*:*:*:*:*",
"matchCriteriaId": "A2BCB73E-27BB-4878-AD9C-90C4F20C25A0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:*",
"matchCriteriaId": "01EDA41C-6B2E-49AF-B503-EB3882265C11",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:10.10:*:*:*:*:*:*:*",
"matchCriteriaId": "87614B58-24AB-49FB-9C84-E8DDBA16353B",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Race condition in the tty_fasync function in drivers/char/tty_io.c in the Linux kernel before 2.6.32.6 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via unknown vectors, related to the put_tty_queue and __f_setown functions. NOTE: the vulnerability was addressed in a different way in 2.6.32.9."
},
{
"lang": "es",
"value": "Condici\u00f3n de carrera en la funci\u00f3n tty_fasync en drivers/char/tty_io.c en el kernel de Linux v2.6.32.6, permite a usuarios locales provocar una denegaci\u00f3n de servicio (deferencia puntero nulo o ca\u00edda del sistema) o posiblemente tener otro impacto no especificado a trav\u00e9s de vectores desconocidos, relacionado con las funciones put_tty_queue y __f_setown. NOTA: la vulnera fue dirigida de un modo distinto en v2.6.32.9."
}
],
"id": "CVE-2009-4895",
"lastModified": "2026-04-29T01:13:23.040",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 4.7,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:L/AC:M/Au:N/C:N/I:N/A:C",
"version": "2.0"
},
"exploitabilityScore": 3.4,
"impactScore": 6.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 4.7,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.0,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2010-09-08T20:00:02.620",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Broken Link"
],
"url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=703625118069f9f8960d356676662d3db5a9d116"
},
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
],
"url": "http://www.debian.org/security/2010/dsa-2094"
},
{
"source": "cve@mitre.org",
"tags": [
"Broken Link"
],
"url": "http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.32.6"
},
{
"source": "cve@mitre.org",
"tags": [
"Mailing List",
"Patch",
"Third Party Advisory"
],
"url": "http://www.openwall.com/lists/oss-security/2010/06/15/2"
},
{
"source": "cve@mitre.org",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "http://www.openwall.com/lists/oss-security/2010/06/15/3"
},
{
"source": "cve@mitre.org",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "http://www.openwall.com/lists/oss-security/2010/06/15/4"
},
{
"source": "cve@mitre.org",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "http://www.openwall.com/lists/oss-security/2010/06/15/5"
},
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
],
"url": "http://www.ubuntu.com/usn/USN-1000-1"
},
{
"source": "cve@mitre.org",
"tags": [
"Issue Tracking",
"Patch"
],
"url": "https://bugzilla.kernel.org/show_bug.cgi?id=14605"
},
{
"source": "cve@mitre.org",
"tags": [
"Issue Tracking",
"Third Party Advisory"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=559100"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Broken Link"
],
"url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=703625118069f9f8960d356676662d3db5a9d116"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "http://www.debian.org/security/2010/dsa-2094"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Broken Link"
],
"url": "http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.32.6"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Mailing List",
"Patch",
"Third Party Advisory"
],
"url": "http://www.openwall.com/lists/oss-security/2010/06/15/2"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "http://www.openwall.com/lists/oss-security/2010/06/15/3"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "http://www.openwall.com/lists/oss-security/2010/06/15/4"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "http://www.openwall.com/lists/oss-security/2010/06/15/5"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "http://www.ubuntu.com/usn/USN-1000-1"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Issue Tracking",
"Patch"
],
"url": "https://bugzilla.kernel.org/show_bug.cgi?id=14605"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Issue Tracking",
"Third Party Advisory"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=559100"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-362"
},
{
"lang": "en",
"value": "CWE-476"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-01-13T20:54:07+00:00",
"cve": "CVE-2009-4895",
"id": "CVE-2009-4895",
"initial_release_date": "2009-12-17T00:00:00+00:00",
"product_status:fixed": "28",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: tty-\u003epgrp races",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2009/cve-2009-4895.json",
"version": "3"
}
}
}
Loading…
Loading…
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.
Loading…
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.
Loading…
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.
Loading…