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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2017-18344 Detail

Description

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).


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
http://www.securityfocus.com/bid/104909 CVE, MITRE Third Party Advisory  VDB Entry 
http://www.securitytracker.com/id/1041414 CVE, MITRE Third Party Advisory  VDB Entry 
https://access.redhat.com/errata/RHSA-2018:2948 CVE, MITRE Third Party Advisory 
https://access.redhat.com/errata/RHSA-2018:3083 CVE, MITRE Third Party Advisory 
https://access.redhat.com/errata/RHSA-2018:3096 CVE, MITRE Third Party Advisory 
https://access.redhat.com/errata/RHSA-2018:3459 CVE, MITRE Third Party Advisory 
https://access.redhat.com/errata/RHSA-2018:3540 CVE, MITRE Third Party Advisory 
https://access.redhat.com/errata/RHSA-2018:3586 CVE, MITRE Third Party Advisory 
https://access.redhat.com/errata/RHSA-2018:3590 CVE, MITRE Third Party Advisory 
https://access.redhat.com/errata/RHSA-2018:3591 CVE, MITRE Third Party Advisory 
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.8 CVE, MITRE Third Party Advisory 
https://github.com/torvalds/linux/commit/cef31d9af908243421258f1df35a4a644604efbe CVE, MITRE Patch  Third Party Advisory 
https://usn.ubuntu.com/3742-1/ CVE, MITRE Third Party Advisory 
https://usn.ubuntu.com/3742-2/ CVE, MITRE Third Party Advisory 
https://www.exploit-db.com/exploits/45175/ CVE, MITRE Exploit  Third Party Advisory  VDB Entry 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-125 Out-of-bounds Read cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

12 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-18344
NVD Published Date:
07/26/2018
NVD Last Modified:
11/20/2024
Source:
MITRE