gsd-2017-18344
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
The timer_create syscall implementation in kernel/time/posix-timers.c in the Linux kernel before 4.14.8 doesn't properly validate the sigevent->sigev_notify field, which leads to out-of-bounds access in the show_timer function (called when /proc/$PID/timers is read). This allows userspace applications to read arbitrary kernel memory (on a kernel built with CONFIG_POSIX_TIMERS and CONFIG_CHECKPOINT_RESTORE).
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2017-18344",
"description": "The timer_create syscall implementation in kernel/time/posix-timers.c in the Linux kernel before 4.14.8 doesn\u0027t properly validate the sigevent-\u003esigev_notify field, which leads to out-of-bounds access in the show_timer function (called when /proc/$PID/timers is read). This allows userspace applications to read arbitrary kernel memory (on a kernel built with CONFIG_POSIX_TIMERS and CONFIG_CHECKPOINT_RESTORE).",
"id": "GSD-2017-18344",
"references": [
"https://www.suse.com/security/cve/CVE-2017-18344.html",
"https://access.redhat.com/errata/RHSA-2018:3591",
"https://access.redhat.com/errata/RHSA-2018:3590",
"https://access.redhat.com/errata/RHSA-2018:3586",
"https://access.redhat.com/errata/RHSA-2018:3540",
"https://access.redhat.com/errata/RHSA-2018:3459",
"https://access.redhat.com/errata/RHSA-2018:3096",
"https://access.redhat.com/errata/RHSA-2018:3083",
"https://access.redhat.com/errata/RHSA-2018:2948",
"https://ubuntu.com/security/CVE-2017-18344",
"https://advisories.mageia.org/CVE-2017-18344.html",
"https://linux.oracle.com/cve/CVE-2017-18344.html",
"https://packetstormsecurity.com/files/cve/CVE-2017-18344"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
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"id": "GSD-2017-18344",
"modified": "2023-12-13T01:21:10.337638Z",
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"impact": {
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"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 2.1,
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"vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N",
"version": "2.0"
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"obtainAllPrivilege": false,
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"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"version": "3.0"
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"lastModifiedDate": "2020-10-15T13:28Z",
"publishedDate": "2018-07-26T19:29Z"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- 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.