What is CVE-2023-38427?

CVE-2023-38427 is a critical-severity vulnerability in Linux Linux_kernel, classified under Out-of-bounds Read. CVSS score: 9.8/10. Published 2023-07-18.

How severe is CVE-2023-38427?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2023-38427 known to be exploited?

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

Out-of-bounds Read in Linux Linux_kernel

CVE-2023-38427

An issue was discovered in the Linux kernel before 6.3.8. fs/smb/server/smb2pdu.c in ksmbd has an integer underflow and out-of-bounds read in deassemble_neg_contexts.

Vulnerability class: Buffer Overflow

EPSS: 0.011 (62.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

chenghungpan/test_

References

cve@mitre.org (Patch)
cve@mitre.org (Release Notes)
cve@mitre.org (Third Party Advisory)

Frequently asked questions

What is CVE-2023-38427?: CVE-2023-38427 is a critical-severity vulnerability in Linux Linux_kernel, classified under Out-of-bounds Read. CVSS score: 9.8/10. Published 2023-07-18.
How severe is CVE-2023-38427?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2023-38427 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.