CVE-2019-3016 Detail

Current Description

In a Linux KVM guest that has PV TLB enabled, a process in the guest kernel may be able to read memory locations from another process in the same guest. This problem is limit to the host running linux kernel 4.10 with a guest running linux kernel 4.16 or later. The problem mainly affects AMD processors but Intel CPUs cannot be ruled out.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  4.7 MEDIUM
Vector:  CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Nist CVSS score does not match with CNA score
CNA:  Oracle
Base Score:  6.2 MEDIUM
Vector:  CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: It is possible that the NVD CVSS may not match that of the CNA. The most common reason for this is that publicly available information does not provide sufficient detail or that information simply was not available at the time the CVSS vector string was assigned.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://packetstormsecurity.com/files/157233/Kernel-Live-Patch-Security-Notice-LSN-0065-1.html
http://www.openwall.com/lists/oss-security/2020/01/30/4 Mailing List  Third Party Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=1792167 Issue Tracking  Third Party Advisory 
https://git.kernel.org/linus/1eff70a9abd46f175defafd29bc17ad456f398a7 Patch  Vendor Advisory 
https://git.kernel.org/linus/8c6de56a42e0c657955e12b882a81ef07d1d073e Patch  Vendor Advisory 
https://git.kernel.org/linus/917248144db5d7320655dbb41d3af0b8a0f3d589 Patch  Vendor Advisory 
https://git.kernel.org/linus/a6bd811f1209fe1c64c9f6fd578101d6436c6b6e Patch  Vendor Advisory 
https://git.kernel.org/linus/b043138246a41064527cf019a3d51d9f015e9796 Patch  Vendor Advisory 
https://lore.kernel.org/lkml/1580407316-11391-1-git-send-email-pbonzini@redhat.com/ Vendor Advisory 
https://security.netapp.com/advisory/ntap-20200313-0003/
https://usn.ubuntu.com/4300-1/
https://usn.ubuntu.com/4301-1/
https://www.debian.org/security/2020/dsa-4699

Weakness Enumeration

CWE-ID CWE Name Source
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') cwe source acceptance level NIST   Reference acceptance level Oracle  
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor Reference acceptance level Oracle  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

7 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-3016
NVD Published Date:
01/31/2020
NVD Last Modified:
06/10/2020
Source:
MITRE