CVE-2019-6974 Detail

Current Description

In the Linux kernel before 4.20.8, kvm_ioctl_create_device in virt/kvm/kvm_main.c mishandles reference counting because of a race condition, leading to a use-after-free.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  8.1 HIGH
Vector:  CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H


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Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cfa39381173d5f969daf43582c95ad679189cbc9 Mailing List  Patch  Vendor Advisory 
http://www.securityfocus.com/bid/107127 Third Party Advisory  VDB Entry 
https://access.redhat.com/errata/RHBA-2019:0959 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2019:0818 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2019:0833 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2019:2809
https://access.redhat.com/errata/RHSA-2019:3967
https://access.redhat.com/errata/RHSA-2020:0103
https://bugs.chromium.org/p/project-zero/issues/detail?id=1765 Exploit  Mailing List  Patch  Third Party Advisory 
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.99 Vendor Advisory 
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.21 Vendor Advisory 
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.8 Vendor Advisory 
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.156 Vendor Advisory 
https://github.com/torvalds/linux/commit/cfa39381173d5f969daf43582c95ad679189cbc9 Exploit  Patch  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html Mailing List  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html Mailing List  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2019/05/msg00002.html Mailing List  Third Party Advisory 
https://support.f5.com/csp/article/K11186236 Third Party Advisory 
https://support.f5.com/csp/article/K11186236?utm_source=f5support&utm_medium=RSS
https://usn.ubuntu.com/3930-1/ Third Party Advisory 
https://usn.ubuntu.com/3930-2/ Third Party Advisory 
https://usn.ubuntu.com/3931-1/ Third Party Advisory 
https://usn.ubuntu.com/3931-2/ Third Party Advisory 
https://usn.ubuntu.com/3932-1/ Third Party Advisory 
https://usn.ubuntu.com/3932-2/ Third Party Advisory 
https://usn.ubuntu.com/3933-1/ Third Party Advisory 
https://usn.ubuntu.com/3933-2/ Third Party Advisory 
https://www.exploit-db.com/exploits/46388/ Exploit  Third Party Advisory  VDB Entry 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') cwe source acceptance level NIST  

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Change History

21 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-6974
NVD Published Date:
02/15/2019
NVD Last Modified:
10/15/2020
Source:
MITRE