CVE-2018-19854 (GCVE-0-2018-19854)
Vulnerability from cvelistv5 – Published: 2018-12-04 16:00 – Updated: 2024-08-05 11:44
VLAI
EPSS
VEX
Summary
An issue was discovered in the Linux kernel before 4.19.3. crypto_report_one() and related functions in crypto/crypto_user.c (the crypto user configuration API) do not fully initialize structures that are copied to userspace, potentially leaking sensitive memory to user programs. NOTE: this is a CVE-2013-2547 regression but with easier exploitability because the attacker does not need a capability (however, the system must have the CONFIG_CRYPTO_USER kconfig option).
Severity
4.7 (Medium)
CWE
- n/a
Assigner
References
10 references
| URL | Tags |
|---|---|
| https://github.com/torvalds/linux/commit/f43f3995… | x_refsource_MISC |
| https://usn.ubuntu.com/3872-1/ | vendor-advisoryx_refsource_UBUNTU |
| https://usn.ubuntu.com/3901-2/ | vendor-advisoryx_refsource_UBUNTU |
| https://usn.ubuntu.com/3878-1/ | vendor-advisoryx_refsource_UBUNTU |
| https://usn.ubuntu.com/3878-2/ | vendor-advisoryx_refsource_UBUNTU |
| http://git.kernel.org/cgit/linux/kernel/git/torva… | x_refsource_MISC |
| https://kernel.org/pub/linux/kernel/v4.x/ChangeLo… | x_refsource_MISC |
| https://usn.ubuntu.com/3901-1/ | vendor-advisoryx_refsource_UBUNTU |
| https://access.redhat.com/errata/RHSA-2019:3309 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2019:3517 | vendor-advisoryx_refsource_REDHAT |
Date Public
2018-12-04 00:00
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"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
"version": "3.0"
},
"exploitabilityScore": 1.0,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2018-12-04T16:29:00.587",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Patch",
"Vendor Advisory"
],
"url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f43f39958beb206b53292801e216d9b8a660f087"
},
{
"source": "cve@mitre.org",
"url": "https://access.redhat.com/errata/RHSA-2019:3309"
},
{
"source": "cve@mitre.org",
"url": "https://access.redhat.com/errata/RHSA-2019:3517"
},
{
"source": "cve@mitre.org",
"tags": [
"Patch",
"Third Party Advisory"
],
"url": "https://github.com/torvalds/linux/commit/f43f39958beb206b53292801e216d9b8a660f087"
},
{
"source": "cve@mitre.org",
"tags": [
"Vendor Advisory"
],
"url": "https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.3"
},
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
],
"url": "https://usn.ubuntu.com/3872-1/"
},
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
],
"url": "https://usn.ubuntu.com/3878-1/"
},
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
],
"url": "https://usn.ubuntu.com/3878-2/"
},
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
],
"url": "https://usn.ubuntu.com/3901-1/"
},
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
],
"url": "https://usn.ubuntu.com/3901-2/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch",
"Vendor Advisory"
],
"url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f43f39958beb206b53292801e216d9b8a660f087"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://access.redhat.com/errata/RHSA-2019:3309"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://access.redhat.com/errata/RHSA-2019:3517"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch",
"Third Party Advisory"
],
"url": "https://github.com/torvalds/linux/commit/f43f39958beb206b53292801e216d9b8a660f087"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.3"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://usn.ubuntu.com/3872-1/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://usn.ubuntu.com/3878-1/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://usn.ubuntu.com/3878-2/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://usn.ubuntu.com/3901-1/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://usn.ubuntu.com/3901-2/"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-200"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-06-28T06:14:16+00:00",
"cve": "CVE-2018-19854",
"id": "CVE-2018-19854",
"initial_release_date": "2018-11-03T00:00:00+00:00",
"product_status:fixed": "154",
"product_status:known_affected": "1",
"product_status:known_not_affected": "55",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: Information Disclosure in crypto_report_one in crypto/crypto_user.c",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2018/cve-2018-19854.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "low",
"current_release_date": "2026-08-31T08:35:23Z",
"cve": "CVE-2018-19854",
"id": "CVE-2018-19854",
"initial_release_date": "2023-02-15T04:21:42Z",
"product_status:known_affected": "65",
"product_status:known_not_affected": "390",
"product_status:recommended": "437",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2018-19854",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2018-19854.json",
"version": "22"
}
}
}
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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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