Vulnerability in Linux

CVE-2021-47360

In the Linux kernel, the following vulnerability has been resolved: binder: make sure fd closes complete During BC_FREE_BUFFER processing, the BINDER_TYPE_FDA object cleanup may close 1 or more fds. The close operations are completed using the task work mechanism -- which means the thread needs to return to userspace or the file object may never be dereferenced -- which can lead to hung processes. Force the binder thread back to userspace if an fd is closed during BC_FREE_BUFFER handling.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.003 (15.4th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 15th percentile — 15.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2021-47360: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

  • Linux — versions 5.4.150, 27564d8d5d12d2ff197055346069c6bdbe08a8c2, 80cd795630d6526ba729a089a435bf74a57af927
  • Linux Kernel — versions 4.20.1, 5.15

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-47360?
CVE-2021-47360 is a medium-severity vulnerability in Linux, classified under CWE-252. CVSS score: 5.5/10. Published 2024-05-21.
How severe is CVE-2021-47360?
Medium severity. CVSS v3 base score is 5.5 out of 10.