CVE-2018-7757 (GCVE-0-2018-7757)
Vulnerability from cvelistv5 – Published: 2018-03-08 14:00 – Updated: 2024-08-05 06:37
VLAI
EPSS
VEX
Summary
Memory leak in the sas_smp_get_phy_events function in drivers/scsi/libsas/sas_expander.c in the Linux kernel through 4.15.7 allows local users to cause a denial of service (memory consumption) via many read accesses to files in the /sys/class/sas_phy directory, as demonstrated by the /sys/class/sas_phy/phy-1:0:12/invalid_dword_count file.
Severity
5.5 (Medium)
CWE
- n/a
Assigner
References
16 references
Date Public
2018-03-08 00:00
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-05T06:37:57.906Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"name": "RHSA-2018:3083",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT",
"x_transferred"
],
"url": "https://access.redhat.com/errata/RHSA-2018:3083"
},
{
"name": "DSA-4187",
"tags": [
"vendor-advisory",
"x_refsource_DEBIAN",
"x_transferred"
],
"url": "https://www.debian.org/security/2018/dsa-4187"
},
{
"name": "USN-3654-1",
"tags": [
"vendor-advisory",
"x_refsource_UBUNTU",
"x_transferred"
],
"url": "https://usn.ubuntu.com/3654-1/"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/torvalds/linux/commit/4a491b1ab11ca0556d2fda1ff1301e862a2d44c4"
},
{
"name": "USN-3697-1",
"tags": [
"vendor-advisory",
"x_refsource_UBUNTU",
"x_transferred"
],
"url": "https://usn.ubuntu.com/3697-1/"
},
{
"name": "DSA-4188",
"tags": [
"vendor-advisory",
"x_refsource_DEBIAN",
"x_transferred"
],
"url": "https://www.debian.org/security/2018/dsa-4188"
},
{
"name": "RHSA-2018:2948",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT",
"x_transferred"
],
"url": "https://access.redhat.com/errata/RHSA-2018:2948"
},
{
"name": "USN-3697-2",
"tags": [
"vendor-advisory",
"x_refsource_UBUNTU",
"x_transferred"
],
"url": "https://usn.ubuntu.com/3697-2/"
},
{
"name": "103348",
"tags": [
"vdb-entry",
"x_refsource_BID",
"x_transferred"
],
"url": "http://www.securityfocus.com/bid/103348"
},
{
"name": "USN-3654-2",
"tags": [
"vendor-advisory",
"x_refsource_UBUNTU",
"x_transferred"
],
"url": "https://usn.ubuntu.com/3654-2/"
},
{
"name": "USN-3698-1",
"tags": [
"vendor-advisory",
"x_refsource_UBUNTU",
"x_transferred"
],
"url": "https://usn.ubuntu.com/3698-1/"
},
{
"name": "[debian-lts-announce] 20180502 [SECURITY] [DLA 1369-1] linux security update",
"tags": [
"mailing-list",
"x_refsource_MLIST",
"x_transferred"
],
"url": "https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html"
},
{
"name": "USN-3656-1",
"tags": [
"vendor-advisory",
"x_refsource_UBUNTU",
"x_transferred"
],
"url": "https://usn.ubuntu.com/3656-1/"
},
{
"name": "RHSA-2018:3096",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT",
"x_transferred"
],
"url": "https://access.redhat.com/errata/RHSA-2018:3096"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4a491b1ab11ca0556d2fda1ff1301e862a2d44c4"
},
{
"name": "USN-3698-2",
"tags": [
"vendor-advisory",
"x_refsource_UBUNTU",
"x_transferred"
],
"url": "https://usn.ubuntu.com/3698-2/"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"datePublic": "2018-03-08T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "Memory leak in the sas_smp_get_phy_events function in drivers/scsi/libsas/sas_expander.c in the Linux kernel through 4.15.7 allows local users to cause a denial of service (memory consumption) via many read accesses to files in the /sys/class/sas_phy directory, as demonstrated by the /sys/class/sas_phy/phy-1:0:12/invalid_dword_count file."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2018-10-31T09:57:01.000Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"name": "RHSA-2018:3083",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2018:3083"
},
{
"name": "DSA-4187",
"tags": [
"vendor-advisory",
"x_refsource_DEBIAN"
],
"url": "https://www.debian.org/security/2018/dsa-4187"
},
{
"name": "USN-3654-1",
"tags": [
"vendor-advisory",
"x_refsource_UBUNTU"
],
"url": "https://usn.ubuntu.com/3654-1/"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/torvalds/linux/commit/4a491b1ab11ca0556d2fda1ff1301e862a2d44c4"
},
{
"name": "USN-3697-1",
"tags": [
"vendor-advisory",
"x_refsource_UBUNTU"
],
"url": "https://usn.ubuntu.com/3697-1/"
},
{
"name": "DSA-4188",
"tags": [
"vendor-advisory",
"x_refsource_DEBIAN"
],
"url": "https://www.debian.org/security/2018/dsa-4188"
},
{
"name": "RHSA-2018:2948",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2018:2948"
},
{
"name": "USN-3697-2",
"tags": [
"vendor-advisory",
"x_refsource_UBUNTU"
],
"url": "https://usn.ubuntu.com/3697-2/"
},
{
"name": "103348",
"tags": [
"vdb-entry",
"x_refsource_BID"
],
"url": "http://www.securityfocus.com/bid/103348"
},
{
"name": "USN-3654-2",
"tags": [
"vendor-advisory",
"x_refsource_UBUNTU"
],
"url": "https://usn.ubuntu.com/3654-2/"
},
{
"name": "USN-3698-1",
"tags": [
"vendor-advisory",
"x_refsource_UBUNTU"
],
"url": "https://usn.ubuntu.com/3698-1/"
},
{
"name": "[debian-lts-announce] 20180502 [SECURITY] [DLA 1369-1] linux security update",
"tags": [
"mailing-list",
"x_refsource_MLIST"
],
"url": "https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html"
},
{
"name": "USN-3656-1",
"tags": [
"vendor-advisory",
"x_refsource_UBUNTU"
],
"url": "https://usn.ubuntu.com/3656-1/"
},
{
"name": "RHSA-2018:3096",
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2018:3096"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4a491b1ab11ca0556d2fda1ff1301e862a2d44c4"
},
{
"name": "USN-3698-2",
"tags": [
"vendor-advisory",
"x_refsource_UBUNTU"
],
"url": "https://usn.ubuntu.com/3698-2/"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-2018-7757",
"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": "Memory leak in the sas_smp_get_phy_events function in drivers/scsi/libsas/sas_expander.c in the Linux kernel through 4.15.7 allows local users to cause a denial of service (memory consumption) via many read accesses to files in the /sys/class/sas_phy directory, as demonstrated by the /sys/class/sas_phy/phy-1:0:12/invalid_dword_count file."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "RHSA-2018:3083",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2018:3083"
},
{
"name": "DSA-4187",
"refsource": "DEBIAN",
"url": "https://www.debian.org/security/2018/dsa-4187"
},
{
"name": "USN-3654-1",
"refsource": "UBUNTU",
"url": "https://usn.ubuntu.com/3654-1/"
},
{
"name": "https://github.com/torvalds/linux/commit/4a491b1ab11ca0556d2fda1ff1301e862a2d44c4",
"refsource": "MISC",
"url": "https://github.com/torvalds/linux/commit/4a491b1ab11ca0556d2fda1ff1301e862a2d44c4"
},
{
"name": "USN-3697-1",
"refsource": "UBUNTU",
"url": "https://usn.ubuntu.com/3697-1/"
},
{
"name": "DSA-4188",
"refsource": "DEBIAN",
"url": "https://www.debian.org/security/2018/dsa-4188"
},
{
"name": "RHSA-2018:2948",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2018:2948"
},
{
"name": "USN-3697-2",
"refsource": "UBUNTU",
"url": "https://usn.ubuntu.com/3697-2/"
},
{
"name": "103348",
"refsource": "BID",
"url": "http://www.securityfocus.com/bid/103348"
},
{
"name": "USN-3654-2",
"refsource": "UBUNTU",
"url": "https://usn.ubuntu.com/3654-2/"
},
{
"name": "USN-3698-1",
"refsource": "UBUNTU",
"url": "https://usn.ubuntu.com/3698-1/"
},
{
"name": "[debian-lts-announce] 20180502 [SECURITY] [DLA 1369-1] linux security update",
"refsource": "MLIST",
"url": "https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html"
},
{
"name": "USN-3656-1",
"refsource": "UBUNTU",
"url": "https://usn.ubuntu.com/3656-1/"
},
{
"name": "RHSA-2018:3096",
"refsource": "REDHAT",
"url": "https://access.redhat.com/errata/RHSA-2018:3096"
},
{
"name": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4a491b1ab11ca0556d2fda1ff1301e862a2d44c4",
"refsource": "MISC",
"url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4a491b1ab11ca0556d2fda1ff1301e862a2d44c4"
},
{
"name": "USN-3698-2",
"refsource": "UBUNTU",
"url": "https://usn.ubuntu.com/3698-2/"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2018-7757",
"datePublished": "2018-03-08T14:00:00.000Z",
"dateReserved": "2018-03-08T00:00:00.000Z",
"dateUpdated": "2024-08-05T06:37:57.906Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2018-7757",
"date": "2026-09-20",
"epss": "0.00529",
"percentile": "0.4369"
},
"nvd": {
"cve": {
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "87875BCC-05C4-4C72-AB6B-5FD9E4E74521",
"versionEndIncluding": "4.15.7",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Memory leak in the sas_smp_get_phy_events function in drivers/scsi/libsas/sas_expander.c in the Linux kernel through 4.15.7 allows local users to cause a denial of service (memory consumption) via many read accesses to files in the /sys/class/sas_phy directory, as demonstrated by the /sys/class/sas_phy/phy-1:0:12/invalid_dword_count file."
},
{
"lang": "es",
"value": "Filtrado de memoria en la funci\u00f3n sas_smp_get_phy_events en drivers/scsi/libsas/sas_expander.c en el kernel de Linux, hasta la versi\u00f3n 4.15.7, permite que usuarios locales provoquen una denegaci\u00f3n de servicio (consumo de memoria) mediante numerosos accesos de lectura a archivos en el directorio /sys/class/sas_phy, tal y como demuestra el archivo /sys/class/sas_phy/phy-1:0:12/invalid_dword_count."
}
],
"id": "CVE-2018-7757",
"lastModified": "2024-11-21T04:12:40.657",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": true,
"baseSeverity": "LOW",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 2.1,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 3.9,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV30": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.0"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2018-03-08T14:29:00.567",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Patch",
"Vendor Advisory"
],
"url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4a491b1ab11ca0556d2fda1ff1301e862a2d44c4"
},
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "http://www.securityfocus.com/bid/103348"
},
{
"source": "cve@mitre.org",
"url": "https://access.redhat.com/errata/RHSA-2018:2948"
},
{
"source": "cve@mitre.org",
"url": "https://access.redhat.com/errata/RHSA-2018:3083"
},
{
"source": "cve@mitre.org",
"url": "https://access.redhat.com/errata/RHSA-2018:3096"
},
{
"source": "cve@mitre.org",
"tags": [
"Patch",
"Third Party Advisory"
],
"url": "https://github.com/torvalds/linux/commit/4a491b1ab11ca0556d2fda1ff1301e862a2d44c4"
},
{
"source": "cve@mitre.org",
"url": "https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html"
},
{
"source": "cve@mitre.org",
"url": "https://usn.ubuntu.com/3654-1/"
},
{
"source": "cve@mitre.org",
"url": "https://usn.ubuntu.com/3654-2/"
},
{
"source": "cve@mitre.org",
"url": "https://usn.ubuntu.com/3656-1/"
},
{
"source": "cve@mitre.org",
"url": "https://usn.ubuntu.com/3697-1/"
},
{
"source": "cve@mitre.org",
"url": "https://usn.ubuntu.com/3697-2/"
},
{
"source": "cve@mitre.org",
"url": "https://usn.ubuntu.com/3698-1/"
},
{
"source": "cve@mitre.org",
"url": "https://usn.ubuntu.com/3698-2/"
},
{
"source": "cve@mitre.org",
"url": "https://www.debian.org/security/2018/dsa-4187"
},
{
"source": "cve@mitre.org",
"url": "https://www.debian.org/security/2018/dsa-4188"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch",
"Vendor Advisory"
],
"url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4a491b1ab11ca0556d2fda1ff1301e862a2d44c4"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"url": "http://www.securityfocus.com/bid/103348"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://access.redhat.com/errata/RHSA-2018:2948"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://access.redhat.com/errata/RHSA-2018:3083"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://access.redhat.com/errata/RHSA-2018:3096"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch",
"Third Party Advisory"
],
"url": "https://github.com/torvalds/linux/commit/4a491b1ab11ca0556d2fda1ff1301e862a2d44c4"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://usn.ubuntu.com/3654-1/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://usn.ubuntu.com/3654-2/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://usn.ubuntu.com/3656-1/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://usn.ubuntu.com/3697-1/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://usn.ubuntu.com/3697-2/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://usn.ubuntu.com/3698-1/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://usn.ubuntu.com/3698-2/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://www.debian.org/security/2018/dsa-4187"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://www.debian.org/security/2018/dsa-4188"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-772"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Low",
"current_release_date": "2026-06-28T07:23:03+00:00",
"cve": "CVE-2018-7757",
"id": "CVE-2018-7757",
"initial_release_date": "2018-03-08T00:00:00+00:00",
"product_status:fixed": "248",
"product_status:known_affected": "27",
"product_status:known_not_affected": "41",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: Memory leak in the sas_smp_get_phy_events function in drivers/scsi/libsas/sas_expander.c",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2018/cve-2018-7757.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…