CVE-2009-2847 (GCVE-0-2009-2847)
Vulnerability from cvelistv5 – Published: 2009-08-18 20:41 – Updated: 2024-08-07 06:07
VLAI
EPSS
VEX
Summary
The do_sigaltstack function in kernel/signal.c in Linux kernel 2.4 through 2.4.37 and 2.6 before 2.6.31-rc5, when running on 64-bit systems, does not clear certain padding bytes from a structure, which allows local users to obtain sensitive information from the kernel stack via the sigaltstack function.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
21 references
Date Public
2009-08-01 00:00
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"comment": "This issue has been rated as having moderate security impact. It was addressed in Red Hat Enterprise Linux 4, 5 and Red Hat Enterprise MRG:\nhttp://rhn.redhat.com/cve/CVE-2009-2847.html\n\nThis issue is not planned to be fixed in Red Hat Enterprise Linux 3, due to this product being in Production 3 of its maintenance life-cycle, where only qualified security errata of important or critical impact are addressed. For further information about Errata Support Policy, visit: http://www.redhat.com/security/updates/errata/",
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"organization": "Red Hat"
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"url": "http://secunia.com/advisories/37105"
},
{
"source": "cve@mitre.org",
"url": "http://secunia.com/advisories/37471"
},
{
"source": "cve@mitre.org",
"url": "http://www.exploit-db.com/exploits/9352"
},
{
"source": "cve@mitre.org",
"tags": [
"Patch"
],
"url": "http://www.openwall.com/lists/oss-security/2009/08/04/1"
},
{
"source": "cve@mitre.org",
"tags": [
"Patch"
],
"url": "http://www.openwall.com/lists/oss-security/2009/08/05/1"
},
{
"source": "cve@mitre.org",
"url": "http://www.openwall.com/lists/oss-security/2009/08/26/2"
},
{
"source": "cve@mitre.org",
"url": "http://www.redhat.com/support/errata/RHSA-2009-1438.html"
},
{
"source": "cve@mitre.org",
"url": "http://www.securityfocus.com/archive/1/507985/100/0/threaded"
},
{
"source": "cve@mitre.org",
"url": "http://www.ubuntu.com/usn/USN-852-1"
},
{
"source": "cve@mitre.org",
"url": "http://www.vmware.com/security/advisories/VMSA-2009-0016.html"
},
{
"source": "cve@mitre.org",
"url": "http://www.vupen.com/english/advisories/2009/3316"
},
{
"source": "cve@mitre.org",
"tags": [
"Patch"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=515392"
},
{
"source": "cve@mitre.org",
"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10637"
},
{
"source": "cve@mitre.org",
"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8405"
},
{
"source": "cve@mitre.org",
"url": "https://www.redhat.com/archives/fedora-package-announce/2009-August/msg01256.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=0083fc2c50e6c5127c2802ad323adf8143ab7856"
},
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"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://rhn.redhat.com/errata/RHSA-2009-1243.html"
},
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"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://secunia.com/advisories/36136"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://secunia.com/advisories/36501"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://secunia.com/advisories/36562"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://secunia.com/advisories/36759"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://secunia.com/advisories/37105"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://secunia.com/advisories/37471"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.exploit-db.com/exploits/9352"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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],
"url": "http://www.openwall.com/lists/oss-security/2009/08/04/1"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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],
"url": "http://www.openwall.com/lists/oss-security/2009/08/05/1"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.openwall.com/lists/oss-security/2009/08/26/2"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.redhat.com/support/errata/RHSA-2009-1438.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.securityfocus.com/archive/1/507985/100/0/threaded"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.ubuntu.com/usn/USN-852-1"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.vmware.com/security/advisories/VMSA-2009-0016.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.vupen.com/english/advisories/2009/3316"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=515392"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10637"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8405"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://www.redhat.com/archives/fedora-package-announce/2009-August/msg01256.html"
}
],
"sourceIdentifier": "cve@mitre.org",
"vendorComments": [
{
"comment": "This issue has been rated as having moderate security impact. It was addressed in Red Hat Enterprise Linux 4, 5 and Red Hat Enterprise MRG:\nhttp://rhn.redhat.com/cve/CVE-2009-2847.html\n\nThis issue is not planned to be fixed in Red Hat Enterprise Linux 3, due to this product being in Production 3 of its maintenance life-cycle, where only qualified security errata of important or critical impact are addressed. For further information about Errata Support Policy, visit: http://www.redhat.com/security/updates/errata/",
"lastModified": "2009-09-15T00:00:00",
"organization": "Red Hat"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2025-11-21T13:10:54+00:00",
"cve": "CVE-2009-2847",
"id": "CVE-2009-2847",
"initial_release_date": "2009-07-31T00:00:00+00:00",
"product_status:fixed": "367",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: information leak in sigaltstack",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2009/cve-2009-2847.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2023-02-15T06:03:02Z",
"cve": "CVE-2009-2847",
"id": "CVE-2009-2847",
"initial_release_date": "2023-02-15T06:03:02Z",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2009-2847",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2009-2847.json",
"version": "2"
}
}
}
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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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