ubuntu-cve-2023-23039
Vulnerability from osv_ubuntu
Published
2023-02-22 17:15
Modified
2025-08-28 17:07
Summary
Details
An issue was discovered in the Linux kernel through 6.2.0-rc2. drivers/tty/vcc.c has a race condition and resultant use-after-free if a physically proximate attacker removes a VCC device while calling open(), aka a race condition between vcc_open() and vcc_remove().
Severity
5.7 (Medium)
5.7 (Medium)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "linux",
"purl": "pkg:deb/ubuntu/linux@4.4.0-272.306?arch=source\u0026distro=esm-infra/xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
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"4.2.0-17.21",
"4.2.0-19.23",
"4.3.0-1.10",
"4.3.0-2.11",
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]
},
{
"ecosystem_specific": {},
"package": {
"ecosystem": "Ubuntu:Pro:20.04:LTS",
"name": "linux-raspi2",
"purl": "pkg:deb/ubuntu/linux-raspi2@5.4.0-1006.6?arch=source\u0026distro=esm-infra/focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"5.3.0-1007.8",
"5.3.0-1014.16",
"5.3.0-1015.17",
"5.3.0-1017.19",
"5.4.0-1004.4",
"5.4.0-1006.6"
]
}
],
"aliases": [],
"details": "An issue was discovered in the Linux kernel through 6.2.0-rc2. drivers/tty/vcc.c has a race condition and resultant use-after-free if a physically proximate attacker removes a VCC device while calling open(), aka a race condition between vcc_open() and vcc_remove().",
"id": "UBUNTU-CVE-2023-23039",
"modified": "2025-08-28T17:07:18Z",
"published": "2023-02-22T17:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2023-23039"
},
{
"type": "REPORT",
"url": "https://lore.kernel.org/lkml/20230102010528.2868403-1-yoochan1026@gmail.com/"
},
{
"type": "REPORT",
"url": "https://lkml.org/lkml/2023/1/1/169"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-23039"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "negligible",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2023-23039"
],
"withdrawn": "2025-09-03T17:41:58Z"
}
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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.
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