FKIE_CVE-2024-26843
Vulnerability from fkie_nvd - Published: 2024-04-17 10:15 - Updated: 2026-06-17 07:18
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved:
efi: runtime: Fix potential overflow of soft-reserved region size
md_size will have been narrowed if we have >= 4GB worth of pages in a
soft-reserved region.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | 6.8 | |
| linux | linux_kernel | 6.8 | |
| linux | linux_kernel | 6.8 | |
| debian | debian_linux | 10.0 |
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/firmware/efi/arm-runtime.c",
"drivers/firmware/efi/riscv-runtime.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "4fff3d735baea104017f2e3c245e27cdc79f2426",
"status": "affected",
"version": "16993c0f0a43213e23666ea40e9163887f593ac7",
"versionType": "git"
},
{
"lessThan": "4aa36b62c3eaa869860bf78b1146e9f2b5f782a9",
"status": "affected",
"version": "16993c0f0a43213e23666ea40e9163887f593ac7",
"versionType": "git"
},
{
"lessThan": "700c3f642c32721f246e09d3a9511acf40ae42be",
"status": "affected",
"version": "16993c0f0a43213e23666ea40e9163887f593ac7",
"versionType": "git"
},
{
"lessThan": "cf3d6813601fe496de7f023435e31bfffa74ae70",
"status": "affected",
"version": "16993c0f0a43213e23666ea40e9163887f593ac7",
"versionType": "git"
},
{
"lessThan": "156cb12ffdcf33883304f0db645e1eadae712fe0",
"status": "affected",
"version": "16993c0f0a43213e23666ea40e9163887f593ac7",
"versionType": "git"
},
{
"lessThan": "de1034b38a346ef6be25fe8792f5d1e0684d5ff4",
"status": "affected",
"version": "16993c0f0a43213e23666ea40e9163887f593ac7",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/firmware/efi/arm-runtime.c",
"drivers/firmware/efi/riscv-runtime.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.5"
},
{
"lessThan": "5.5",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.211",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.150",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.80",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.19",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.7.*",
"status": "unaffected",
"version": "6.7.7",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.8",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"configurations": [
{
"nodes": [
{
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"matchCriteriaId": "DC6905D6-5F33-4718-AAFD-C356351E82B0",
"versionEndExcluding": "5.10.211",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "CB6C60DE-9E0C-46C5-904D-D4F4031F8E95",
"versionEndExcluding": "5.15.150",
"versionStartIncluding": "5.11",
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},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "BA7850CE-97C9-4408-A348-6173296BCA2B",
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "8D82004C-B2AE-4048-9344-32EFF65953B0",
"versionEndExcluding": "6.6.19",
"versionStartIncluding": "6.2",
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},
{
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"matchCriteriaId": "575EE16B-67F2-4B5B-B5F8-1877715C898B",
"versionEndExcluding": "6.7.7",
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"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:*",
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},
{
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},
{
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"vulnerable": true
}
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},
{
"nodes": [
{
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"vulnerable": true
}
],
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]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nefi: runtime: Fix potential overflow of soft-reserved region size\n\nmd_size will have been narrowed if we have \u003e= 4GB worth of pages in a\nsoft-reserved region."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: efi: runtime: corrige el posible desbordamiento del tama\u00f1o de la regi\u00f3n reservada por software. md_size se habr\u00e1 reducido si tenemos \u0026gt;= 4 GB de p\u00e1ginas en una regi\u00f3n reservada por software."
}
],
"id": "CVE-2024-26843",
"lastModified": "2026-06-17T07:18:28.877",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.0,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 0.8,
"impactScore": 5.2,
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2024-26843",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-06-12T17:35:21.799610Z",
"version": "2.0.3"
}
}
]
},
"published": "2024-04-17T10:15:10.047",
"references": [
{
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],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-787"
}
],
"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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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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