Security readout for executives and security teams
Plain-English summary
This is a high-severity Linux kernel issue in the RDMA mlx5 driver path. When the kernel failed to destroy certain RDMA queue resources, it did not tell higher layers, leaving the system operating on a false assumption. The source shows kernel warnings and potential severe impact, but not confirmed exploitation.
Executive priority
Treat this as a high-priority kernel maintenance item for RDMA-enabled Linux infrastructure. It is not marked as known exploited in the provided sources, but kernel-level impact and low-privilege local access warrant timely patch planning on exposed hosts.
Technical view
The flaw affects RDMA/mlx5 handling of QP/RQ destruction. Firmware destruction return values were ignored, so upper layers could continue as if QP/RQ cleanup succeeded. The fix returns the firmware status to callers so failure is handled or warned. CVSS is 7.8 with local, low-privilege attack characteristics.
Likely exposure
Exposure is most likely on Linux systems running affected kernel versions with RDMA/mlx5 and InfiniBand user verbs components loaded or available. Systems without mlx5 RDMA hardware or driver usage appear less likely to be exposed, but confirm through kernel configuration and module inventory.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation evidence. The CVSS vector indicates local access with low privileges and no user interaction. The public description shows a kernel WARN path, but does not provide exploitability details beyond high confidentiality, integrity, and availability impact scoring.
Researcher notes
The key behavior is error propagation during QP/RQ destruction in RDMA/mlx5. The bundle identifies stable commits but does not provide a CWE, exploit narrative, or distribution-specific fixed packages. Analysis should stay tied to kernel version, module presence, and vendor backport status.
Mitigation direction
- Update to a vendor kernel containing the referenced stable fixes.
- Prioritize RDMA-capable Linux hosts using mlx5 or ib_uverbs modules.
- Check distribution advisories before applying kernel changes in production.
- If patching is delayed, review vendor guidance for RDMA or mlx5 risk reduction.
Validation and detection
- Inventory kernels against affected and fixed version data in vendor advisories.
- Check whether mlx5_ib, mlx5_core, ib_uverbs, or RDMA modules are loaded.
- Review kernel logs for related RDMA/mlx5 or uverbs destruction warnings.
- Confirm deployed kernel includes one of the referenced stable commits.
Public sources used
- CVE Program
- CVE List V5
- Linux stable commit 73311dd831858d797cf8ebe140654ed519b41c36
- Linux stable commit 1a650d3ccd79cdd5796edd864683a6b8dd0bf576
- Linux stable commit 5fe7815e784bf21061885f8112a7108aef5c45bd
- Linux stable commit 04704c201bb08efaf96d7b1396c6864f8984e244
- Linux stable commit 22664c06e997087fe37f9ba208008c948571214a
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.
CVE-2023-53286 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
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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:H/A:H1.85.9CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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://git.kernel.org/stable/c/73311dd831858d797cf8ebe140654ed519b41c36CVE reference, Linux
- https://git.kernel.org/stable/c/1a650d3ccd79cdd5796edd864683a6b8dd0bf576CVE reference, Linux
- https://git.kernel.org/stable/c/5fe7815e784bf21061885f8112a7108aef5c45bdCVE reference, Linux
- https://git.kernel.org/stable/c/04704c201bb08efaf96d7b1396c6864f8984e244CVE reference, Linux
- https://git.kernel.org/stable/c/22664c06e997087fe37f9ba208008c948571214aCVE reference, Linux
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.