CVE-2019-19770
Last modified
CVE-2019-19770 is a high-severity vulnerability rated 8.2/10 on the CVSS scale. In the Linux kernel 4.19.83, there is a use-after-free (read) in the debugfs_remove function in fs/debugfs/inode.c (which is used to remove a file or directory in debugfs that was previously created with a call to another debugfs function such as debugfs_create_file). NOTE: Linux kernel developers dispute this issue as not being an issue with debugfs, instead this is an issue with misuse of debugfs within blktrace. EPSS estimates a 2.45% chance of exploitation in the next 30 days.
Description
In the Linux kernel 4.19.83, there is a use-after-free (read) in the debugfs_remove function in fs/debugfs/inode.c (which is used to remove a file or directory in debugfs that was previously created with a call to another debugfs function such as debugfs_create_file). NOTE: Linux kernel developers dispute this issue as not being an issue with debugfs, instead this is an issue with misuse of debugfs within blktrace
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 4.19.83 |
References
- https://bugzilla.kernel.org/show_bug.cgi?id=205713Exploit, Issue Tracking, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20200103-0001/Third Party Advisory
- https://bugzilla.kernel.org/show_bug.cgi?id=205713Exploit, Issue Tracking, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20200103-0001/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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