ubuntu-cve-2025-55159
Vulnerability from osv_ubuntu
Published
2025-08-11 23:15
Modified
2026-05-20 15:22
Summary
Details
slab is a pre-allocated storage for a uniform data type. In version 0.4.10, the get_disjoint_mut method incorrectly checked if indices were within the slab's capacity instead of its length, allowing access to uninitialized memory. This could lead to undefined behavior or potential crashes. This has been fixed in slab 0.4.11. A workaround for this issue involves to avoid using get_disjoint_mut with indices that might be beyond the slab's actual length.
Severity
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "librust-slab-dev",
"binary_version": "0.4.1-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "rust-slab",
"purl": "pkg:deb/ubuntu/rust-slab@0.4.1-1?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.4.1-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "librust-slab-dev",
"binary_version": "0.4.4-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "rust-slab",
"purl": "pkg:deb/ubuntu/rust-slab@0.4.4-1?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.4.1-1",
"0.4.4-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "librust-slab-dev",
"binary_version": "0.4.9-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "rust-slab",
"purl": "pkg:deb/ubuntu/rust-slab@0.4.9-1?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.4.4-1",
"0.4.9-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "librust-slab-dev",
"binary_version": "0.4.9-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "rust-slab",
"purl": "pkg:deb/ubuntu/rust-slab@0.4.9-1?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.4.9-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "librust-slab-dev",
"binary_version": "0.4.9-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "rust-slab",
"purl": "pkg:deb/ubuntu/rust-slab@0.4.9-1?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.4.9-1"
]
}
],
"aliases": [],
"details": "slab is a pre-allocated storage for a uniform data type. In version 0.4.10, the get_disjoint_mut method incorrectly checked if indices were within the slab\u0027s capacity instead of its length, allowing access to uninitialized memory. This could lead to undefined behavior or potential crashes. This has been fixed in slab 0.4.11. A workaround for this issue involves to avoid using get_disjoint_mut with indices that might be beyond the slab\u0027s actual length.",
"id": "UBUNTU-CVE-2025-55159",
"modified": "2026-05-20T15:22:56Z",
"published": "2025-08-11T23:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2025-55159"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-55159"
},
{
"type": "REPORT",
"url": "https://github.com/tokio-rs/slab/commit/2d65c514bc964b192bab212ddf3c1fcea4ae96b8"
},
{
"type": "REPORT",
"url": "https://github.com/tokio-rs/slab/pull/152"
},
{
"type": "REPORT",
"url": "https://github.com/tokio-rs/slab/security/advisories/GHSA-qx2v-8332-m4fv"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2025-55159"
]
}
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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
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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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