UBUNTU-CVE-2018-10853
A flaw was found in the way Linux kernel KVM hypervisor before 4.18 emulated instructions such as sgdt/sidt/fxsave/fxrstor. It did not check current privilege(CPL) level while emulating unprivileged instructions. An unprivileged guest user/process could use this flaw to potentially escalate privileges inside guest.
02 / AFFECTED SOFTWARE
Affected packages
48 explicit affected versions
10 explicit affected versions
6 explicit affected versions
191 explicit affected versions
13 explicit affected versions
18 explicit affected versions
1 explicit affected versions
8 explicit affected versions
12 explicit affected versions
7 explicit affected versions
1 explicit affected versions
16 explicit affected versions
4 explicit affected versions
13 explicit affected versions
23 explicit affected versions
56 explicit affected versions
50 explicit affected versions
14 explicit affected versions
16 explicit affected versions
20 explicit affected versions
7 explicit affected versions
78 explicit affected versions
2 explicit affected versions
51 explicit affected versions
22 explicit affected versions
7 explicit affected versions
37 explicit affected versions
13 explicit affected versions
26 explicit affected versions
12 explicit affected versions
40 explicit affected versions
3 explicit affected versions
1 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
A flaw was found in the way Linux kernel KVM hypervisor before 4.18 emulated instructions such as sgdt/sidt/fxsave/fxrstor. It did not check current privilege(CPL) level while emulating unprivileged instructions. An unprivileged guest user/process could use this flaw to potentially escalate privileges inside guest.
05 / REFERENCES