CVE-2013-2094 (GCVE-0-2013-2094)
Vulnerability from cvelistv5 – Published: 2013-05-14 20:00 – Updated: 2025-10-22 00:05Summary
The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9 uses an incorrect integer data type, which allows local users to gain privileges via a crafted perf_event_open system call.
Severity
8.4 (High)
SSVC
Exploitation: active
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-05-01 03:55 UTC
Assigner
References
30 references
Date Public
2013-04-12 00:00
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 08de6eb7-479a-4f88-aa0e-8f3783cbf57a
Exploited: Yes
Timestamps
First Seen: 2022-09-15
Asserted: 2022-09-15
Scope
Notes: KEV entry: Linux Kernel Privilege Escalation Vulnerability | Affected: Linux / Kernel | Description: Linux kernel fails to check all 64 bits of attr.config passed by user space, resulting to out-of-bounds access of the perf_swevent_enabled array in sw_perf_event_destroy(). Explotation allows for privilege escalation. | Required action: Apply updates per vendor instructions. | Due date: 2022-10-06 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8176cced706b5e5d15887584150764894e94e02f; https://nvd.nist.gov/vuln/detail/CVE-2013-2094
Evidence
Type: Vendor Report
Signal: Successful Exploitation
Confidence: 80%
Source: cisa-kev
Details
| Cwes | CWE-189 |
|---|---|
| Feed | CISA Known Exploited Vulnerabilities Catalog |
| Product | Kernel |
| Due Date | 2022-10-06 |
| Date Added | 2022-09-15 |
| Vendorproject | Linux |
| Vulnerabilityname | Linux Kernel Privilege Escalation Vulnerability |
| Knownransomwarecampaignuse | Unknown |
References
Created: 2026-02-02 12:27 UTC
| Updated: 2026-02-06 07:17 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 0e8c3afe-9be1-41f0-a3b1-d1cdf42cf22c
Exploited: Yes
Timestamps
First Seen: 2022-09-15
Asserted: 2022-09-15
Scope
Notes: KEVIntel entry: The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9 uses an incorrect integer data type, which allows local... | Affected: Linux / Linux Kernel | CVSS: 8.4 (HIGH) | Used in malware: unknown | Not yet in CISA KEV: False
Evidence
Type: Public Report
Signal: Successful Exploitation
Confidence: 70%
Source: kevintel
Details
| Feed | KEVIntel (kevintel.com) |
|---|---|
| Title | The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9 uses an incorrect integer data type, which allows local... |
| Vendor | Linux |
| Product | Linux Kernel |
| Added Date | 2022-09-15T00:00:00.000Z |
| Cvss Score | 8.4 |
| Epss Score | None |
| Cvss Severity | HIGH |
| Epss Percentile | None |
| Used In Malware | unknown |
| Ahead Of Cisa Kev | None |
| Not Yet In Cisa Kev | False |
References
Created: 2026-06-23 14:05 UTC
| Updated: 2026-07-10 06:14 UTC
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"lastModified": "2024-12-19T18:30:26.137",
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"published": "2013-05-14T20:55:01.527",
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"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Analyzed",
"weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-189\"}]}]"
},
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"redhat_vex": {
"aggregate_severity": "Important",
"current_release_date": "2026-02-18T17:53:13+00:00",
"cve": "CVE-2013-2094",
"id": "CVE-2013-2094",
"initial_release_date": "2013-05-14T00:00:00+00:00",
"product_status:fixed": "724",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: perf_swevent_enabled array out-of-bound access",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2013/cve-2013-2094.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "important",
"current_release_date": "2026-09-16T00:37:48Z",
"cve": "CVE-2013-2094",
"id": "CVE-2013-2094",
"initial_release_date": "2023-02-15T05:39:10Z",
"product_status:known_not_affected": "537",
"product_status:recommended": "164",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2013-2094",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2013-2094.json",
"version": "20"
},
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"cveMetadata": "{\"cveId\": \"CVE-2013-2094\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-22T00:05:42.816Z\", \"dateReserved\": \"2013-02-19T00:00:00.000Z\", \"assignerOrgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"datePublished\": \"2013-05-14T20:00:00.000Z\", \"assignerShortName\": \"redhat\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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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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