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Vulnerability Details : 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.
Publish Date : 2020-01-31 Last Update Date : 2020-06-10
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- CVSS Scores & Vulnerability Types

CVSS Score
1.9
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 362

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2020:3010: kernel security, bug fix, and enhancement update (Important) oval:com.redhat.rhsa:def:20203010 unix
RHSA-2020:3016: kernel-rt security and bug fix update (Important) oval:com.redhat.rhsa:def:20203016 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2019-3016

# Product Type Vendor Product Version Update Edition Language
1 OS Linux Linux Kernel * * * * Version Details Vulnerabilities
2 OS Linux Linux Kernel 4.10 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Linux Linux Kernel 2

- References For CVE-2019-3016

http://packetstormsecurity.com/files/157233/Kernel-Live-Patch-Security-Notice-LSN-0065-1.html
https://usn.ubuntu.com/4300-1/
UBUNTU USN-4300-1
https://usn.ubuntu.com/4301-1/
UBUNTU USN-4301-1
https://security.netapp.com/advisory/ntap-20200313-0003/ CONFIRM
https://git.kernel.org/linus/1eff70a9abd46f175defafd29bc17ad456f398a7 CONFIRM
https://git.kernel.org/linus/8c6de56a42e0c657955e12b882a81ef07d1d073e CONFIRM
http://www.openwall.com/lists/oss-security/2020/01/30/4
MLIST [oss-security] 20200130 CVE-2019-3016: information leak within a KVM guest
https://git.kernel.org/linus/b043138246a41064527cf019a3d51d9f015e9796 CONFIRM
https://git.kernel.org/linus/917248144db5d7320655dbb41d3af0b8a0f3d589 CONFIRM
https://git.kernel.org/linus/a6bd811f1209fe1c64c9f6fd578101d6436c6b6e CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=1792167 CONFIRM
https://lore.kernel.org/lkml/1580407316-11391-1-git-send-email-pbonzini@redhat.com/ CONFIRM
https://www.debian.org/security/2020/dsa-4699
DEBIAN DSA-4699

- Metasploit Modules Related To CVE-2019-3016

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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