CVE-2023-38431
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-38431
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-38431.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2023-38431
- Downstream
- Published
- 2023-07-18T00:15:09Z
- Modified
- 2025-08-19T14:27:50.648555Z
- Severity
-
- 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
An issue was discovered in the Linux kernel before 6.3.8. fs/smb/server/connection.c in ksmbd does not validate the relationship between the NetBIOS header's length field and the SMB header sizes, via pdusize in ksmbdconnhandlerloop, leading to an out-of-bounds read.
- References
-
- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.8
- https://security.netapp.com/advisory/ntap-20230824-0011/
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/fs/smb/server?id=368ba06881c395f1c9a7ba22203cf8d78b4addc0
- https://security-tracker.debian.org/tracker/CVE-2023-38431
Affected packages
Debian:12 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:13 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:14 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source