GSD-2020-10690
Vulnerability from gsd - Updated: 2023-12-13 01:22Details
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"
]
},
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"remediation": "unknown",
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"modified": "2023-12-13T01:22:04.649011Z",
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"lastModifiedDate": "2021-12-20T23:03Z",
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}
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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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