Information disclosure in Linux Kernel
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.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 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.
EPSS exploit prediction
EPSS: 0.006 (47.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 47.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Linux Kernel — versions 4.10, 4.10 to 5.6
Weakness classification (CWE)
References
- www.openwall.com/lists/oss-security/2020/01/30/4 (mailing-list, Mailing List, Third Party Advisory)
- lore.kernel.org/lkml/1580407316-11391-1-git-send-email-pbonzini@redhat.com/
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- git.kernel.org/linus/8c6de56a42e0c657955e12b882a81ef07d1d073e (Patch, Vendor Advisory)
- git.kernel.org/linus/1eff70a9abd46f175defafd29bc17ad456f398a7 (Patch, Vendor Advisory)
- git.kernel.org/linus/917248144db5d7320655dbb41d3af0b8a0f3d589 (Patch, Vendor Advisory)
- git.kernel.org/linus/b043138246a41064527cf019a3d51d9f015e9796 (Patch, Vendor Advisory)
- git.kernel.org/linus/a6bd811f1209fe1c64c9f6fd578101d6436c6b6e (Patch, Vendor Advisory)
- security.netapp.com/advisory/ntap-20200313-0003/
- usn.ubuntu.com/4300-1/ (vendor-advisory)
Frequently asked questions
- What is CVE-2019-3016?
- CVE-2019-3016 is a medium-severity vulnerability in Linux Kernel, classified under Information Disclosure. CVSS score: 6.2/10. Published 2020-01-31.
- How severe is CVE-2019-3016?
- Medium severity. CVSS v3 base score is 6.2 out of 10.