What is CVE-2021-47456?

CVE-2021-47456 is a high-severity vulnerability in Linux, classified under Use After Free. CVSS score: 8.4/10. Published 2024-05-22.

How severe is CVE-2021-47456?

High severity. CVSS v3 base score is 8.4 out of 10.

Use After Free in Linux

CVE-2021-47456

In the Linux kernel, the following vulnerability has been resolved: can: peak_pci: peak_pci_remove(): fix UAF When remove the module peek_pci, referencing 'chan' again after releasing 'dev' will cause UAF. Fix this by releasing 'dev' la…

Vulnerability class: Use-After-Free

EPSS: 0.002 (14.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Linux — versions e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd, 3.4, 0
Linux Linux_kernel — versions 5.15

Weakness classification (CWE)

References

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

Frequently asked questions

What is CVE-2021-47456?: CVE-2021-47456 is a high-severity vulnerability in Linux, classified under Use After Free. CVSS score: 8.4/10. Published 2024-05-22.
How severe is CVE-2021-47456?: High severity. CVSS v3 base score is 8.4 out of 10.