Description
__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.
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Remediation
No vendor fix or workaround currently provided.
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Tracking
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Advisories
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-2483-1 | linux-4.19 security update |
Ubuntu USN |
USN-4414-1 | Linux kernel vulnerabilities |
References
History
No history.
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-08-05T02:09:38.149Z
Reserved: 2019-11-17T00:00:00.000Z
Link: CVE-2019-19039
No data.
Status : Modified
Published: 2019-11-21T02:15:23.337
Modified: 2024-11-21T04:34:02.797
Link: CVE-2019-19039
OpenCVE Enrichment
No data.
Debian DLA
Ubuntu USN