gsd-2018-18559
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
In the Linux kernel through 4.19, a use-after-free can occur due to a race condition between fanout_add from setsockopt and bind on an AF_PACKET socket. This issue exists because of the 15fe076edea787807a7cdc168df832544b58eba6 incomplete fix for a race condition. The code mishandles a certain multithreaded case involving a packet_do_bind unregister action followed by a packet_notifier register action. Later, packet_release operates on only one of the two applicable linked lists. The attacker can achieve Program Counter control.
Aliases
Aliases
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"description": "In the Linux kernel through 4.19, a use-after-free can occur due to a race condition between fanout_add from setsockopt and bind on an AF_PACKET socket. This issue exists because of the 15fe076edea787807a7cdc168df832544b58eba6 incomplete fix for a race condition. The code mishandles a certain multithreaded case involving a packet_do_bind unregister action followed by a packet_notifier register action. Later, packet_release operates on only one of the two applicable linked lists. The attacker can achieve Program Counter control.",
"id": "GSD-2018-18559",
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"https://www.suse.com/security/cve/CVE-2018-18559.html",
"https://access.redhat.com/errata/RHSA-2020:0174",
"https://access.redhat.com/errata/RHSA-2019:4159",
"https://access.redhat.com/errata/RHSA-2019:3967",
"https://access.redhat.com/errata/RHSA-2019:1190",
"https://access.redhat.com/errata/RHSA-2019:1170",
"https://access.redhat.com/errata/RHSA-2019:0188",
"https://access.redhat.com/errata/RHSA-2019:0163",
"https://linux.oracle.com/cve/CVE-2018-18559.html"
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},
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"id": "GSD-2018-18559",
"modified": "2023-12-13T01:22:36.632238Z",
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"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 6.8,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
"version": "2.0"
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"exploitabilityScore": 8.6,
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"severity": "MEDIUM",
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"privilegesRequired": "NONE",
"scope": "UNCHANGED",
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"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
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},
"lastModifiedDate": "2023-05-16T11:14Z",
"publishedDate": "2018-10-22T16:29Z"
}
}
}
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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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- 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.