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CVE-2017-7518 PUBLISHED

A flaw was found in the Linux kernel before version 4.12 in the way the KVM module processed the trap flag(TF) bit in EFLAGS during emulation of the syscall instruction, which leads to a debug exception(#DB) being raised in the guest stack. A user/process inside a guest could use this flaw to potentially escalate their privileges inside the guest. Linux guests are not affected by this.

EPSS 0.09% · 25.6th percentile

Risk Scores

EPSS Score
0.09%
25.6th percentile

Affected Products

VendorProductVersions
Ubuntu:14.04:LTSlinux-aws4.4.0-1006.6, 4.4.0-1009.9, 4.4.0-1010.10
Ubuntu:Pro:FIPS:16.04:LTSlinux-fips4.4.0-1006.6, 4.4.0-1005.5, 4.4.0-1003.3
Ubuntu:24.04:LTSlinux-hwe-6.110, 6.11.0-25.25~24.04.1, 6.11.0-24.24~24.04.1
Ubuntu:22.04:LTSlinux-riscv5.15.0-1017.19, 5.15.0-1016.18, 5.15.0-1015.17
Ubuntu:24.04:LTSlinux-azure-6.116.11.0-1015.15~24.04.1, 6.11.0-1017.17~24.04.1, 6.11.0-1008.8~24.04.1
Ubuntu:16.04:LTSlinux-gcp4.10.0-1008.8, 4.10.0-1009.9, 4.10.0-1007.7
Ubuntu:16.04:LTSlinux-hwe4.8.0-54.57~16.04.1, 4.8.0-53.56~16.04.1, 4.8.0-52.55~16.04.1
Ubuntu:22.04:LTSlinux-realtime0, 5.15.0-1032.35
Ubuntu:24.04:LTSlinux-raspi-realtime6.8.0-2019.20, 0
Ubuntu:22.04:LTSlinux-intel-iot-realtime5.15.0-1073.75, 0
Ubuntu:Pro:20.04:LTSlinux-azure-fde-5.155.15.0-1030.37~20.04.1.1, 5.15.0-1029.36~20.04.1.1, 5.15.0-1021.26~20.04.1.1
Ubuntu:14.04:LTSlinux0, 3.11.0-12.19, 3.12.0-1.3
Ubuntu:20.04:LTSlinux-azure-fde5.4.0-1078.81+cvm1.1, 5.4.0-1080.83+cvm1.1, 5.4.0-1063.66+cvm2.2
Ubuntu:14.04:LTSlinux-lts-xenial4.4.0-91.114~14.04.1, 0, 4.4.0-13.29~14.04.1
Ubuntu:16.04:LTSlinux-aws4.4.0-1037.46, 0, 4.4.0-1001.10
Ubuntu:16.04:LTSlinux-snapdragon4.4.0-1079.84, 0, 4.4.0-1012.12
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.116.11.0-1009.10~24.04.1, 0, 6.11.0-1016.17~24.04.1
Ubuntu:20.04:LTSlinux-riscv5.4.0-34.38, 5.4.0-36.41, 5.4.0-37.42
Ubuntu:20.04:LTSlinux-raspi20, 5.4.0-1004.4, 5.4.0-1006.6
Ubuntu:16.04:LTSlinux-kvm4.4.0-1008.13, 4.4.0-1019.24, 4.4.0-1017.22

…and 4 more

Timeline

References

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