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CVE-2019-15031 PUBLISHED

In the Linux kernel through 5.2.14 on the powerpc platform, a local user can read vector registers of other users' processes via an interrupt. To exploit the venerability, a local user starts a transaction (via the hardware transactional memory instruction tbegin) and then accesses vector registers. At some point, the vector registers will be corrupted with the values from a different local Linux process, because MSR_TM_ACTIVE is misused in arch/powerpc/kernel/process.c.

EPSS 0.07% · 21.0th percentile

Risk Scores

EPSS Score
0.07%
21.0th percentile

Affected Products

VendorProductVersions
Ubuntu:22.04:LTSlinux-intel-iot-realtime5.15.0-1073.75, 0
Ubuntu:16.04:LTSlinux-hwe4.8.0-49.52~16.04.1, 4.8.0-46.49~16.04.1, 4.8.0-45.48~16.04.1
Ubuntu:20.04:LTSlinux-gke5.4.0-1054.57, 0, 5.4.0-1033.35
Ubuntu:Pro:FIPS-updates:18.04:LTSlinux-aws-fips4.15.0-2000.4, 0
Ubuntu:Pro:14.04:LTSlinux-azure4.15.0-1036.38~14.04.2, 4.15.0-1037.39~14.04.2, 4.15.0-1023.24~14.04.1
Ubuntu:16.04:LTSlinux-azure4.13.0-1007.9, 4.13.0-1006.8, 4.13.0-1005.7
Ubuntu:18.04:LTSlinux4.15.0-43.46, 4.15.0-44.47, 4.15.0-46.49
Ubuntu:22.04:LTSlinux-realtime5.15.0-1032.35, 0
Ubuntu:20.04:LTSlinux-azure-fde5.4.0-1080.83+cvm1.1, 5.4.0-1085.90+cvm1.1, 5.4.0-1085.90+cvm2.1
Ubuntu:Pro:FIPS:18.04:LTSlinux-aws-fips0, 4.15.0-2000.4
Ubuntu:18.04:LTSlinux-oracle4.15.0-1021.23, 4.15.0-1018.20, 4.15.0-1017.19
Ubuntu:18.04:LTSlinux-oem-osp10, 5.0.0-1020.22, 5.0.0-1018.20
Ubuntu:18.04:LTSlinux-hwe5.0.0-25.26~18.04.1, 5.0.0-27.28~18.04.1, 4.18.0-13.14~18.04.1
Ubuntu:22.04:LTSlinux-riscv5.15.0-1007.7, 5.15.0-1008.8, 5.15.0-1011.12
Ubuntu:18.04:LTSlinux-aws4.15.0-1043.45, 0, 4.15.0-1001.1
Ubuntu:18.04:LTSlinux-kvm4.15.0-1029.29, 4.15.0-1030.30, 4.15.0-1031.31
Ubuntu:24.04:LTSlinux-raspi-realtime6.8.0-2019.20, 0
Ubuntu:18.04:LTSlinux-oem4.15.0-1028.33, 4.15.0-1030.35, 4.15.0-1033.38
Ubuntu:18.04:LTSlinux-hwe-edge5.0.0-15.16~18.04.1, 5.3.0-24.26~18.04.2, 5.3.0-23.25~18.04.2
Ubuntu:18.04:LTSlinux-gke-5.05.0.0-1013.13~18.04.1, 5.0.0-1015.15~18.04.1, 0

…and 12 more

Timeline

References

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