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CVE-2019-11487 PUBLISHED

The Linux kernel before 5.1-rc5 allows page->_refcount reference count overflow, with resultant use-after-free issues, if about 140 GiB of RAM exists. This is related to fs/fuse/dev.c, fs/pipe.c, fs/splice.c, include/linux/mm.h, include/linux/pipe_fs_i.h, kernel/trace/trace.c, mm/gup.c, and mm/hugetlb.c. It can occur with FUSE requests.

EPSS 0.04% · 13.1th percentile

Risk Scores

EPSS Score
0.04%
13.1th percentile

Affected Products

VendorProductVersions
Ubuntu:16.04:LTSlinux-kvm4.4.0-1058.65, 4.4.0-1056.63, 4.4.0-1054.61
Ubuntu:Pro:20.04:LTSlinux-azure-fde-5.155.15.0-1047.54~20.04.1.1, 5.15.0-1046.53~20.04.1.1, 5.15.0-1043.50~20.04.1.1
Ubuntu:18.04:LTSlinux-gke-4.154.15.0-1033.35, 4.15.0-1034.36, 4.15.0-1037.39
Ubuntu:18.04:LTSlinux-kvm4.15.0-1031.31, 4.15.0-1030.30, 4.15.0-1029.29
Ubuntu:Pro:FIPS:18.04:LTSlinux-gcp-fips0, 4.15.0-1001.1
Ubuntu:Pro:14.04:LTSlinux3.13.0-156.206, 3.13.0-63.103, 3.13.0-65.105
Ubuntu:16.04:LTSlinux-raspi24.4.0-1091.99, 4.4.0-1080.88, 4.4.0-1079.87
Ubuntu:18.04:LTSlinux-snapdragon4.15.0-1058.64, 4.15.0-1060.66, 4.15.0-1055.59
Ubuntu:18.04:LTSlinux-raspi24.15.0-1021.23, 4.15.0-1022.24, 4.15.0-1024.26
Ubuntu:16.04:LTSlinux-snapdragon4.4.0-1107.112, 0, 4.4.0-1012.12
Ubuntu:18.04:LTSlinux-hwe-edge5.0.0-17.18~18.04.1, 5.0.0-20.21~18.04.1, 5.3.0-19.20~18.04.2
Ubuntu:22.04:LTSlinux-realtime0, 5.15.0-1032.35
Ubuntu:18.04:LTSlinux-azure4.15.0-1009.9, 4.18.0-1018.18~18.04.1, 4.18.0-1014.14~18.04.1
Ubuntu:20.04:LTSlinux-riscv0, 5.4.0-24.28, 5.4.0-26.30
Ubuntu:18.04:LTSlinux-gcp4.15.0-1010.10, 0, 4.15.0-1001.1
Ubuntu:18.04:LTSlinux-oem4.15.0-1039.44, 4.15.0-1043.48, 4.15.0-1045.50
Ubuntu:24.04:LTSlinux-raspi-realtime6.8.0-2019.20, 0
Ubuntu:Pro:FIPS-updates:18.04:LTSlinux-aws-fips0, 4.15.0-2000.4
Ubuntu:Pro:FIPS:18.04:LTSlinux-azure-fips4.15.0-1002.2, 0
Ubuntu:22.04:LTSlinux-riscv5.15.0-1027.31, 0, 5.13.0-1004.4

…and 21 more

Timeline

References

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