Security readout for executives and security teams
Plain-English summary
CVE-2023-53359 is a Linux kernel USB/debugfs memory leak. A local low-privileged user could potentially cause memory exhaustion over time, affecting availability rather than data confidentiality or integrity.
Executive priority
Treat as a routine availability-risk kernel update, not an emergency based on current evidence. Prioritize shared Linux hosts and environments with untrusted local users.
Technical view
The kernel used debugfs_lookup() without releasing the returned reference with dput(), causing a memory leak. The fix uses debugfs_lookup_and_remove(), which handles lookup and removal cleanup together. CVSS 3.1 is 5.5: local attack, low complexity, low privileges, no user interaction, high availability impact.
Likely exposure
Exposure is most relevant to Linux systems running affected kernel versions listed in the CVE record. Distribution kernels may be backported, so package vendor advisories are more reliable than version strings alone.
Exploitation context
The source bundle does not show CISA KEV listing, public exploitation, or exploit code. The CVSS vector indicates local low-privileged access is required, with impact limited to availability.
Researcher notes
Evidence is limited to the CVE record and Linux stable commits. No source in the bundle confirms active exploitation. Affected-version data is broad, so distribution-specific backport status should drive remediation decisions.
Mitigation direction
- Apply Linux kernel or distribution updates containing the referenced stable fixes.
- Check vendor kernel advisories for backported fixes and supported package versions.
- Prioritize multi-user systems where untrusted local users have shell or workload access.
- Monitor affected systems for unusual memory growth until remediation is complete.
Validation and detection
- Inventory Linux kernel versions across servers, endpoints, and appliances.
- Compare installed kernels against vendor advisories and the CVE affected-version data.
- Confirm the running kernel includes one of the referenced stable fixes or a vendor backport.
- Review vulnerability scanner findings for CVE-2023-53359 and validate package-level evidence.
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-401: 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-2023-53359 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
- Medium
- CVSS
- 5.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/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:N/I:N/A:H1.83.6CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
5.5MediumVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/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://git.kernel.org/stable/c/6683327b51a601daba32900072349dfa1d4e8feaCVE reference, Linux
- https://git.kernel.org/stable/c/c68ece7baf2aa9783b8244482c03010d477d4a93CVE reference, Linux
- https://git.kernel.org/stable/c/cc00340fb1226a2a3a5cf15473ac417da3c952f1CVE reference, Linux
- https://git.kernel.org/stable/c/30374434edab20e25776f8ecb4bc9d1e54309487CVE 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.
Missing Release of Memory after Effective Lifetime
Missing Release of Memory after Effective Lifetime represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.