What is CVE-2021-47113?

CVE-2021-47113 is a medium-severity vulnerability in Linux, classified under Use After Free. CVSS score: 5.5/10. Published 2024-03-15.

How severe is CVE-2021-47113?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Is CVE-2021-47113 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Use After Free in Linux

CVE-2021-47113

In the Linux kernel, the following vulnerability has been resolved: btrfs: abort in rename_exchange if we fail to insert the second ref Error injection stress uncovered a problem where we'd leave a dangling inode ref if we failed during…

Vulnerability class: Use-After-Free

EPSS: 0.003 (18.3th percentile) — read the EPSS interpretation.

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.

Affected products

Linux — versions cdd1fedf8261cd7a73c0596298902ff4f0f04492, 4.7, 0
Linux Linux_kernel — versions 5.13

Weakness classification (CWE)

CWE-416 — Use After Free

Public proof-of-concept exploits

NaInSec/CVE-LIST

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)

Frequently asked questions

What is CVE-2021-47113?: CVE-2021-47113 is a medium-severity vulnerability in Linux, classified under Use After Free. CVSS score: 5.5/10. Published 2024-03-15.
How severe is CVE-2021-47113?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2021-47113 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.