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.
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- 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
- https://bugzilla.redhat.com/show_bug.cgi?id=1792167
- https://git.kernel.org/linus/1eff70a9abd46f175defafd29bc17ad456f398a7
- https://git.kernel.org/linus/8c6de56a42e0c657955e12b882a81ef07d1d073e
- https://git.kernel.org/linus/917248144db5d7320655dbb41d3af0b8a0f3d589
- https://git.kernel.org/linus/a6bd811f1209fe1c64c9f6fd578101d6436c6b6e
- https://git.kernel.org/linus/b043138246a41064527cf019a3d51d9f015e9796
- https://lore.kernel.org/lkml/1580407316-11391-1-git-send-email-pbonzini%40redhat.com/
- 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