CVE-2019-3016

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.

CVSS v3.0 4.7 MEDIUM
CVSS v2.0 1.9 LOW

4.7^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 1.0 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

1.9^/10

CVSS v2.0 : LOW

Vector : AV:L/AC:M/Au:N/C:P/I:N/A:N

Exploitability : 3.4 / Impact : 2.9

Access Vector LOCAL

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

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

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel:4.10:::::::*
	cpe:2.3:o:linux:linux_kernel::::::::

Information

Published : 2020-01-31 12:15

Updated : 2020-06-10 13:15

NVD link : CVE-2019-3016

Mitre link : CVE-2019-3016

JSON object : View

CWE

CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

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Products Affected

linux

linux_kernel

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