ntfs_read_locked_inode in the ntfs.ko filesystem driver in the Linux kernel 4.15.0 allows attackers to trigger a use-after-free read and possibly cause a denial of service (kernel oops or panic) via a crafted ntfs filesystem.
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
Link | Tags |
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https://marc.info/?l=linux-ntfs-dev&m=152413769810234&w=2 | third party advisory mailing list |
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1763403 | issue tracking third party advisory |
http://www.securityfocus.com/bid/104588 | vdb entry third party advisory |
https://access.redhat.com/errata/RHSA-2019:0641 | third party advisory vendor advisory |