CVE-2023-32247
Session setup memory exhaustion denial-of-service vulnerability
At a glance
- Severity
- HIGH 7.5
- EPSS
- EPSS 3.87 % · percentile 90 (2026-10-27)
- State
- PUBLISHED
- Published
- Updated
- Assigner
- redhat
- NVD status
- Modified
Description
A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within the handling of SMB2_SESSION_SETUP commands. The issue results from the lack of control of resource consumption. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | redhat |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · secalert@redhat.com (Secondary) |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
Weaknesses (CWE)
European references
- ENISA EUVD · EUVD-2023-36504
- GCVE · GCVE-0-2023-32247
CERT-FR advisories
- CERTFR-2024-AVI-0263 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0243 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2023-AVI-0751 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2023-AVI-0726 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.15 < 5.15.145cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 6.1.29cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.2 < 6.2.16cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.3 < 6.3.2cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:*cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:*cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:*cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:*
Affected products
References
- https://access.redhat.com/security/cve/CVE-2023-32247
- https://bugzilla.redhat.com/show_bug.cgi?id=2219803
- https://security.netapp.com/advisory/ntap-20230915-0011/
- https://www.zerodayinitiative.com/advisories/ZDI-CAN-20478/
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |