Double Free in Linux

CVE-2024-50215

In the Linux kernel, the following vulnerability has been resolved: nvmet-auth: assign dh_key to NULL after kfree_sensitive ctrl->dh_key might be used across multiple calls to nvmet_setup_dhgroup() for the same controller. So it's better to nullify it after release on error path in order to avoid double free later in nvmet_destroy_auth(). Found by Linux Verification Center (linuxtesting.org) with Svace.

Vulnerability class: Double Free

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.006 (48.2th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 48.2% 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-2024-50215: held from 0.006 to 0.006.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

  • Linux — versions 7a277c37d3522e9b2777d762bbbcecafae2b1f8d, 6.0, 0
  • Linux Kernel — versions 6.12

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2024-50215?
CVE-2024-50215 is a high-severity vulnerability in Linux, classified under Double Free. CVSS score: 8.1/10. Published 2024-11-09.
How severe is CVE-2024-50215?
High severity. CVSS v3 base score is 8.1 out of 10.