Security readout for executives and security teams
Plain-English summary
CVE-2023-53309 is a Linux kernel Radeon graphics driver flaw that can let a local authenticated user crash or disrupt a system. The source describes an integer overflow that leads to later use of uninitialized memory. It is availability-focused, not described as data theft or privilege escalation.
Executive priority
Treat this as a moderate operational stability risk. It is not presented as remotely exploitable or data-exposing, but Linux workstations or servers with Radeon driver exposure should be patched through normal kernel maintenance, with higher priority for shared systems.
Technical view
The issue is CWE-190 in drm/radeon radeon_cs_parser_init. An unsigned size value can overflow during multiplication by sizeof(uint32_t), becoming zero and causing uninitialized memory to be referenced later. CVSS 3.1 is 5.5, local, low complexity, low privileges, no user interaction, with high availability impact only.
Likely exposure
Exposure is most likely on Linux systems running affected kernel versions with the Radeon DRM driver present or enabled, especially multi-user systems where local users can reach GPU interfaces. The provided data identifies Linux kernel versions and stable commits, but not specific distributions or package names.
Exploitation context
The record does not report active exploitation, and KEV is false. Exploitation requires local access with low privileges. The documented impact is denial of service or system availability loss, with no source evidence of confidentiality or integrity impact.
Researcher notes
The core condition is unsigned integer overflow when size reaches 0x40000000 before multiplication. Source evidence supports availability impact only. The affected-version data is broad and distribution mapping is not provided, so validation should rely on vendor kernel advisories and commit/backport confirmation.
Mitigation direction
- Update affected Linux kernels using trusted distribution or vendor packages containing the referenced stable fixes.
- Prioritize systems with Radeon GPUs or enabled radeon DRM access for local users.
- Check distribution advisories for backported fixes before relying only on upstream version strings.
- Restrict unnecessary local account and GPU device access until patched.
Validation and detection
- Inventory Linux kernel versions against the affected version data in the CVE record.
- Confirm whether the radeon DRM driver is loaded, enabled, or available on relevant systems.
- Verify installed kernel packages include the referenced upstream stable commits or vendor backports.
- Review local multi-user systems first because exploitation requires local privileges.
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-190: 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-2023-53309 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/d05ba46134d07e889de7d23cf8503574a22ede09CVE reference, Linux
- https://git.kernel.org/stable/c/cfa9148bafb2d3292b65de1bac79dcca65be2643CVE reference, Linux
- https://git.kernel.org/stable/c/b8fab6aebdf2115ec2d7bd2f3498d5b911ff351eCVE reference, Linux
- https://git.kernel.org/stable/c/e6825b30d37fe89ceb87f926d33d4fad321a331eCVE reference, Linux
- https://git.kernel.org/stable/c/c0d7dbc6b7a61a56028118c00af2c8319d44a682CVE reference, Linux
- https://git.kernel.org/stable/c/2e1be420b86980c25a75325e90dfc3fc73126f61CVE reference, Linux
- https://git.kernel.org/stable/c/25e634d7f44eb13113139040e5366bebe48c882fCVE reference, Linux
- https://git.kernel.org/stable/c/f828b681d0cd566f86351c0b913e6cb6ed8c7b9cCVE 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.
Integer Overflow or Wraparound
Integer Overflow or Wraparound represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.