Use After Free in Linux

CVE-2023-52838

In the Linux kernel, the following vulnerability has been resolved: fbdev: imsttfb: fix a resource leak in probe I've re-written the error handling but the bug is that if init_imstt() fails we need to call iounmap(par->cmap_regs).

Vulnerability class: Use-After-Free

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.003 (15.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 15th percentile — 15.1% 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-2023-52838: 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 ad3de274e065790181f112b9c72a2fb4665ee2fd, 6.3.7, 6.1.33
  • Linux Kernel

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2023-52838?
CVE-2023-52838 is a medium-severity vulnerability in Linux, classified under Use After Free. CVSS score: 6.2/10. Published 2024-05-21.
How severe is CVE-2023-52838?
Medium severity. CVSS v3 base score is 6.2 out of 10.