Use After Free in Linux Kernel

CVE-2023-3317

A use-after-free flaw was found in mt7921_check_offload_capability in drivers/net/wireless/mediatek/mt76/mt7921/init.c in wifi mt76/mt7921 sub-component in the Linux Kernel. This flaw could allow an attacker to crash the system after 'features' memory release. This vulnerability could even lead to a kernel information leak problem.

Vulnerability class: Use-After-Free

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.

EPSS exploit prediction

EPSS: 0.002 (13.6th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 13.6% 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-2023-3317: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

  • Linux Kernel — versions 6.3
  • Kernel — versions KErnel version prior to 6.3-rc6

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2023-3317?
CVE-2023-3317 is a high-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 7.1/10. Published 2023-06-23.
How severe is CVE-2023-3317?
High severity. CVSS v3 base score is 7.1 out of 10.