Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2019-15791

In shiftfs, a non-upstream patch to the Linux kernel included in the Ubuntu 5.0 and 5.3 kernel series, shiftfs_btrfs_ioctl_fd_replace() installs an fd referencing a file from the lower filesystem without taking an additional reference to that file. After the btrfs ioctl completes this fd is closed, which then puts a reference to that file, leading to a refcount underflow.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 47.5%
CVSS Severity
CVSS v3 Score 7.1
CVSS v2 Score 4.6
Products affected by CVE-2019-15791


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