GHSA-5X5Q-FCW5-7FRV
Vulnerability from github – Published: 2022-01-26 00:01 – Updated: 2022-03-26 00:01
VLAI?
Details
Insufficient cleanup of passed-through device IRQs The management of IRQs associated with physical devices exposed to x86 HVM guests involves an iterative operation in particular when cleaning up after the guest's use of the device. In the case where an interrupt is not quiescent yet at the time this cleanup gets invoked, the cleanup attempt may be scheduled to be retried. When multiple interrupts are involved, this scheduling of a retry may get erroneously skipped. At the same time pointers may get cleared (resulting in a de-reference of NULL) and freed (resulting in a use-after-free), while other code would continue to assume them to be valid.
Severity ?
4.6 (Medium)
{
"affected": [],
"aliases": [
"CVE-2022-23035"
],
"database_specific": {
"cwe_ids": [
"CWE-459"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-01-25T14:15:00Z",
"severity": "MODERATE"
},
"details": "Insufficient cleanup of passed-through device IRQs The management of IRQs associated with physical devices exposed to x86 HVM guests involves an iterative operation in particular when cleaning up after the guest\u0027s use of the device. In the case where an interrupt is not quiescent yet at the time this cleanup gets invoked, the cleanup attempt may be scheduled to be retried. When multiple interrupts are involved, this scheduling of a retry may get erroneously skipped. At the same time pointers may get cleared (resulting in a de-reference of NULL) and freed (resulting in a use-after-free), while other code would continue to assume them to be valid.",
"id": "GHSA-5x5q-fcw5-7frv",
"modified": "2022-03-26T00:01:03Z",
"published": "2022-01-26T00:01:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-23035"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OMR6UBGJW6JKND7IILGQ2CU35EQPF3E3"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202208-23"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2022/dsa-5117"
},
{
"type": "WEB",
"url": "https://xenbits.xenproject.org/xsa/advisory-395.txt"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2022/01/25/4"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
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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