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CVE-2019-19039 PUBLISHED

__btrfs_free_extent in fs/btrfs/extent-tree.c in the Linux kernel through 5.3.12 calls btrfs_print_leaf in a certain ENOENT case, which allows local users to obtain potentially sensitive information about register values via the dmesg program. NOTE: The BTRFS development team disputes this issues as not being a vulnerability because “1) The kernel provide facilities to restrict access to dmesg - dmesg_restrict=1 sysctl option. So it's really up to the system administrator to judge whether dmesg access shall be disallowed or not. 2) WARN/WARN_ON are widely used macros in the linux kernel. If this CVE is considered valid this would mean there are literally thousands CVE lurking in the kernel - something which clearly is not the case.

EPSS 0.43% · 62.3th percentile

Risk Scores

EPSS Score
0.43%
62.3th percentile

Affected Products

VendorProductVersions
Ubuntu:Pro:FIPS:18.04:LTSlinux-gcp-fips4.15.0-1001.1, 0
Ubuntu:18.04:LTSlinux-oracle4.15.0-1037.41, 4.15.0-1038.42, 4.15.0-1039.43
Ubuntu:20.04:LTSlinux-azure5.3.0-1008.9, 5.3.0-1003.3, 5.3.0-1009.10
Ubuntu:16.04:LTSlinux-hwe4.15.0-42.45~16.04.1, 4.15.0-43.46~16.04.1, 4.15.0-45.48~16.04.1
Ubuntu:18.04:LTSlinux-gke-4.154.15.0-1057.60, 4.15.0-1058.61, 4.15.0-1059.62
Ubuntu:18.04:LTSlinux-aws4.15.0-1057.59, 4.15.0-1054.56, 4.15.0-1052.54
Ubuntu:Pro:FIPS-updates:18.04:LTSlinux-azure-fips0, 4.15.0-1002.2
Ubuntu:18.04:LTSlinux-oem4.15.0-1009.12, 4.15.0-1090.100, 4.15.0-1087.97
Ubuntu:18.04:LTSlinux-gke-5.35.3.0-1014.15~18.04.1, 5.3.0-1016.17~18.04.1, 5.3.0-1017.18~18.04.1
Ubuntu:16.04:LTSlinux-gcp4.15.0-1032.34~16.04.1, 4.15.0-1030.32~16.04.1, 4.15.0-1029.31~16.04.1
Ubuntu:18.04:LTSlinux-snapdragon4.4.0-1078.83, 4.15.0-1067.74, 4.15.0-1069.76
Ubuntu:20.04:LTSlinux-oracle5.3.0-1002.2, 0, 5.4.0-1005.5
Ubuntu:Pro:16.04:LTSlinux-kvm4.4.0-1095.104, 4.4.0-1153.164, 4.4.0-1152.163
Ubuntu:22.04:LTSlinux-intel-iot-realtime5.15.0-1073.75, 0
Ubuntu:20.04:LTSlinux-kvm5.4.0-1008.8, 5.4.0-1007.7, 5.4.0-1006.6
Ubuntu:Pro:FIPS-updates:18.04:LTSlinux-aws-fips4.15.0-2018.18, 0, 4.15.0-2000.4
Ubuntu:Pro:FIPS:18.04:LTSlinux-aws-fips0, 4.15.0-2000.4
Ubuntu:Pro:14.04:LTSlinux3.13.0-170.220, 3.13.0-77.121, 3.13.0-76.120
Ubuntu:Pro:14.04:LTSlinux-aws4.4.0-1042.45, 4.4.0-1062.66, 4.4.0-1064.68
Ubuntu:Pro:FIPS-updates:18.04:LTSlinux-fips0, 4.15.0-1034.39, 4.15.0-1029.34

…and 41 more

Timeline

References

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