gsd-2020-10690
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
There is a use-after-free in kernel versions before 5.5 due to a race condition between the release of ptp_clock and cdev while resource deallocation. When a (high privileged) process allocates a ptp device file (like /dev/ptpX) and voluntarily goes to sleep. During this time if the underlying device is removed, it can cause an exploitable condition as the process wakes up to terminate and clean all attached files. The system crashes due to the cdev structure being invalid (as already freed) which is pointed to by the inode.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2020-10690",
"description": "There is a use-after-free in kernel versions before 5.5 due to a race condition between the release of ptp_clock and cdev while resource deallocation. When a (high privileged) process allocates a ptp device file (like /dev/ptpX) and voluntarily goes to sleep. During this time if the underlying device is removed, it can cause an exploitable condition as the process wakes up to terminate and clean all attached files. The system crashes due to the cdev structure being invalid (as already freed) which is pointed to by the inode.",
"id": "GSD-2020-10690",
"references": [
"https://www.suse.com/security/cve/CVE-2020-10690.html",
"https://access.redhat.com/errata/RHSA-2020:4062",
"https://access.redhat.com/errata/RHSA-2020:4060",
"https://access.redhat.com/errata/RHSA-2020:1769",
"https://access.redhat.com/errata/RHSA-2020:1567",
"https://ubuntu.com/security/CVE-2020-10690",
"https://linux.oracle.com/cve/CVE-2020-10690.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
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"id": "GSD-2020-10690",
"modified": "2023-12-13T01:22:04.649011Z",
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"impact": {
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"authentication": "NONE",
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"vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P",
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"confidentialityImpact": "HIGH",
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"scope": "UNCHANGED",
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"lastModifiedDate": "2021-12-20T23:03Z",
"publishedDate": "2020-05-08T15:15Z"
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}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.