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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2017-7518 Detail

Description

A flaw was found in the Linux kernel before version 4.12 in the way the KVM module processed the trap flag(TF) bit in EFLAGS during emulation of the syscall instruction, which leads to a debug exception(#DB) being raised in the guest stack. A user/process inside a guest could use this flaw to potentially escalate their privileges inside the guest. Linux guests are not affected by this.


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.openwall.com/lists/oss-security/2017/06/23/5 CVE, Inc., Red Hat Mailing List  Patch  Third Party Advisory 
http://www.securityfocus.com/bid/99263 CVE, Inc., Red Hat Third Party Advisory  VDB Entry 
http://www.securitytracker.com/id/1038782 CVE, Inc., Red Hat Third Party Advisory  VDB Entry 
https://access.redhat.com/articles/3290921 CVE, Inc., Red Hat Permissions Required  Third Party Advisory 
https://access.redhat.com/errata/RHSA-2018:0395 CVE, Inc., Red Hat Third Party Advisory 
https://access.redhat.com/errata/RHSA-2018:0412 CVE, Inc., Red Hat Third Party Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7518 CVE, Inc., Red Hat Issue Tracking  Patch  Third Party Advisory 
https://usn.ubuntu.com/3619-1/ CVE, Inc., Red Hat Third Party Advisory 
https://usn.ubuntu.com/3619-2/ CVE, Inc., Red Hat Third Party Advisory 
https://usn.ubuntu.com/3754-1/ CVE, Inc., Red Hat Third Party Advisory 
https://www.debian.org/security/2017/dsa-3981 CVE, Inc., Red Hat Third Party Advisory 
https://www.spinics.net/lists/kvm/msg151817.html CVE, Inc., Red Hat Mailing List  Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-755 Improper Handling of Exceptional Conditions cwe source acceptance level NIST  
CWE-250 Execution with Unnecessary Privileges Red Hat, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

9 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-7518
NVD Published Date:
07/30/2018
NVD Last Modified:
11/20/2024
Source:
Red Hat, Inc.