CVE-2019-3016In 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…
- 6.2MediumCVSS base score
- 0.62%Exploitation in 30 daysEPSS · top 50% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By oracle
- 14 months later
· 14 months later
Published
- 5 years later
· 5 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| oracleCNA (assigner) | 3.1 | Medium6.2 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVDNVD · Modified | 3.1 | Medium4.7 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.62% · top 50% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.2.
Affected products
- affected 4.10 to 5.6
References
References13
- [oss-security] 20200130 CVE-2019-3016: information leak within a KVM guest (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://lore.kernel.org/lkml/1580407316-11391-1-git-send-email-pbonzini%40redhat.com/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=1792167 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://git.kernel.org/linus/8c6de56a42e0c657955e12b882a81ef07d1d073e (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://git.kernel.org/linus/1eff70a9abd46f175defafd29bc17ad456f398a7 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://git.kernel.org/linus/917248144db5d7320655dbb41d3af0b8a0f3d589 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://git.kernel.org/linus/b043138246a41064527cf019a3d51d9f015e9796 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://git.kernel.org/linus/a6bd811f1209fe1c64c9f6fd578101d6436c6b6e (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://security.netapp.com/advisory/ntap-20200313-0003/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-4300-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-4301-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- http://packetstormsecurity.com/files/157233/Kernel-Live-Patch-Security-Notice-LSN-0065-1.html (opens in a new tab)x_refsource_MISCx_transferred
- DSA-4699 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2019-12655 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2019-3016)Record last updated .