Security readout for executives and security teams
Plain-English summary
CVE-2023-1652 is a Linux kernel memory-safety flaw in NFS code. A local, low-privileged attacker could crash the system or potentially expose kernel information. The source bundle names Linux Kernel 6.2 RC5 and vendor advisories, but does not provide a full affected-version matrix or confirmed fix details.
Executive priority
Treat as a high-priority infrastructure maintenance issue, especially for multi-user Linux servers and NFS-dependent environments. It is not documented as actively exploited in the provided sources, but the potential for system crash and kernel information exposure warrants timely remediation.
Technical view
The flaw is a CWE-416 use-after-free in nfsd4_ssc_setup_dul within fs/nfsd/nfs4proc.c. CVSS 3.1 is 7.1 with local attack vector, low complexity, low privileges, no user interaction, high confidentiality impact, no integrity impact, and high availability impact.
Likely exposure
Most relevant exposure is Linux systems running affected kernel builds with NFS server functionality and local user access. The bundle explicitly lists Linux Kernel 6.2 RC5, while Red Hat, NetApp, and Siemens references indicate vendor-specific impact should be verified from their advisories.
Exploitation context
The bundle does not show CISA KEV listing or cited evidence of active exploitation. The risk is still material because local kernel flaws can cause outages and may disclose sensitive kernel information once an attacker has a foothold.
Researcher notes
Evidence is limited to the CVE description, CVSS vector, CWE, affected Linux kernel entry, KEV false status, and vendor reference URLs. Do not infer broader kernel ranges, exploit availability, or exact patches without checking the linked vendor records.
Mitigation direction
- Check vendor advisories for affected versions and fixed packages.
- Prioritize kernel updates on systems with NFS server functionality.
- Restrict local shell access to trusted users only.
- Reduce or disable unnecessary NFS services where operationally feasible.
- Monitor vendor guidance from Red Hat, NetApp, and Siemens.
Validation and detection
- Inventory Linux kernel versions across servers and appliances.
- Identify hosts running NFS server components or vendor-affected products.
- Confirm whether any systems match Linux Kernel 6.2 RC5 or advisory-listed builds.
- Review vendor security pages for patched package or firmware status.
- Track remediation through change management and reboot completion.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-416: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2023-1652 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H1.85.2CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
7.1HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://access.redhat.com/security/cve/cve-2023-1652CVE reference, redhat
- https://security.netapp.com/advisory/ntap-20230511-0006/CVE reference, redhat
- https://cert-portal.siemens.com/productcert/html/ssa-265688.htmlCVE reference, siemens-SADP
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Use After Free
Use After Free represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.