Security readout for executives and security teams
Plain-English summary
This is a Linux kernel memory leak in the DRM client modeset path. A local, low-privileged user could potentially drive memory consumption high enough to affect system availability. The sources do not indicate data theft, code execution, or confirmed active exploitation.
Executive priority
Schedule this in normal kernel patch cycles, with faster handling for multi-user or availability-sensitive Linux systems. It is not currently evidenced as actively exploited, but it can affect uptime if reachable locally.
Technical view
The flaw is CWE-401 in drm_client_modeset_probe: when modeset->mode is replaced, the previous duplicated mode was not freed. The provided CVSS is 5.5, local attack, low complexity, low privileges, no confidentiality or integrity impact, high availability impact.
Likely exposure
Exposure is limited to Linux systems running affected kernel versions or downstream packages containing this DRM client bug. Risk is most relevant where DRM/KMS, framebuffer helper, hotplug, or display adapter initialization paths are reachable.
Exploitation context
The bundle marks KEV as false and gives no cited evidence of exploitation in the wild. The CVSS vector is local with low privileges and no user interaction. Treat this primarily as a local denial-of-service availability risk unless vendor advisories say otherwise.
Researcher notes
The source evidence is narrow: a kernel memory-leak fix and CVSS metadata. Do not infer remote exploitation, privilege escalation, or affected non-Linux products. Validation should focus on kernel branch lineage and downstream vendor backports.
Mitigation direction
- Update to a Linux kernel package containing the referenced stable DRM fix.
- Use your Linux distribution advisory to confirm fixed downstream package versions.
- Prioritize shared servers, GPU-enabled systems, VDI hosts, and exposed multi-user Linux systems.
- Monitor kernel memory pressure and unexplained DRM or framebuffer related instability.
Validation and detection
- Inventory Linux kernel versions across servers, workstations, and images.
- Check vendor package changelogs for CVE-2023-53288 or the DRM client memory-leak fix.
- Confirm affected systems use kernels in the listed vulnerable ranges before remediation tracking.
- After patching, verify the running kernel is the updated package, not only installed.
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-2023-53288 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/5d580017bdb9b3e930b6009e467e5e1589f8ca8aCVE reference, Linux
- https://git.kernel.org/stable/c/5f2a12f64347f535c6ef55fa7eb36a2874d69b59CVE reference, Linux
- https://git.kernel.org/stable/c/1369d0c586ad44f2d18fe2f4cbc5bcb24132fa71CVE reference, Linux
- https://git.kernel.org/stable/c/917bef37cfaca07781c6fbaf6cd9404d27e64e6fCVE reference, Linux
- https://git.kernel.org/stable/c/8108a494639e56aea77e7196a1d6ea89792b9d4aCVE reference, Linux
- https://git.kernel.org/stable/c/2329cc7a101af1a844fbf706c0724c0baea38365CVE 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.