cve-2017-18344
Vulnerability from cvelistv5
Published
2018-07-26 19:00
Modified
2024-08-05 21:20
Severity ?
Summary
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).
References
cve@mitre.orghttp://www.securityfocus.com/bid/104909Third Party Advisory, VDB Entry
cve@mitre.orghttp://www.securitytracker.com/id/1041414Third Party Advisory, VDB Entry
cve@mitre.orghttps://access.redhat.com/errata/RHSA-2018:2948Third Party Advisory
cve@mitre.orghttps://access.redhat.com/errata/RHSA-2018:3083Third Party Advisory
cve@mitre.orghttps://access.redhat.com/errata/RHSA-2018:3096Third Party Advisory
cve@mitre.orghttps://access.redhat.com/errata/RHSA-2018:3459Third Party Advisory
cve@mitre.orghttps://access.redhat.com/errata/RHSA-2018:3540Third Party Advisory
cve@mitre.orghttps://access.redhat.com/errata/RHSA-2018:3586Third Party Advisory
cve@mitre.orghttps://access.redhat.com/errata/RHSA-2018:3590Third Party Advisory
cve@mitre.orghttps://access.redhat.com/errata/RHSA-2018:3591Third Party Advisory
cve@mitre.orghttps://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.8Third Party Advisory
cve@mitre.orghttps://github.com/torvalds/linux/commit/cef31d9af908243421258f1df35a4a644604efbePatch, Third Party Advisory
cve@mitre.orghttps://usn.ubuntu.com/3742-1/Third Party Advisory
cve@mitre.orghttps://usn.ubuntu.com/3742-2/Third Party Advisory
cve@mitre.orghttps://www.exploit-db.com/exploits/45175/Exploit, Third Party Advisory, VDB Entry
Impacted products
n/an/a
Show details on NVD website

To clipboard 

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  }
}


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Sightings

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  • 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.
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  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
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