CVE-2019-15791: Reference count underflow in shiftfs
Ubuntu · Shiftfs in the Linux kernel
Vendor fix available · Affected: Ubuntu Shiftfs in the Linux kernel · Exploitation: possible (1 to 10%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 71% of scored CVEs
DescriptionCVE.org
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.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Ubuntu · Shiftfs in the Linux kernelfrom 5.3.0-11.12 before 5.3 kernel*; from 5.0 kernel before 5.0.0-35.38
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Possible (1 to 10%). EPSS between 1% and 10%.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- Ubuntu
- Published
- April 2020
CoverageNo articles yet
No CyberSIXT article names CVE-2019-15791 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.