Security readout for executives and security teams
Plain-English summary
CVE-2022-50399 is a Linux kernel media-driver flaw in atomisp. A local user can provide dimensions that overflow an internal size calculation, potentially causing a denial of service. The available sources do not indicate remote exploitation, data theft, or active exploitation.
Executive priority
Treat as a moderate Linux endpoint and device stability risk. Patch through normal kernel maintenance, faster where shared workstations, kiosks, or camera-enabled systems allow untrusted local access.
Technical view
In sh_css_set_black_frame(), user-controlled height and width are multiplied without preventing integer overflow. The CVSS vector is local, low complexity, low privileges, no user interaction, unchanged scope, and high availability impact only. The issue is categorized as CWE-190.
Likely exposure
Exposure is most likely on Linux systems running affected kernels where the atomisp media driver is present and reachable by local users. Internet-facing exposure is not supported by the sources.
Exploitation context
The CVE record supports local, authenticated exploitation with availability impact. It is not listed as KEV in the provided bundle, and no cited source claims active exploitation or public exploit use.
Researcher notes
The public bundle identifies the vulnerable calculation but does not provide exploit details, crash traces, or distribution-specific package status. Validation should focus on kernel provenance, atomisp availability, and local device access paths.
Mitigation direction
- Apply Linux stable or distribution kernel updates containing the referenced fixes.
- Prioritize systems exposing atomisp media devices to non-administrative local users.
- Check distribution vendor guidance for affected package versions and backports.
- Restrict local access to media devices where business use allows.
Validation and detection
- Inventory Linux hosts with affected kernel versions or matching vulnerable source commits.
- Confirm whether the atomisp driver is built, loaded, or packaged on those hosts.
- Verify installed kernel packages include the referenced stable fixes or vendor backports.
- Review local media-device permissions for unnecessary broad user access.
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-2022-50399 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.
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:H1.83.6Primary CVE scoreVulnerability 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
Source materials
- CVE List V5 sourceCVE List V5
- https://git.kernel.org/stable/c/51b8dc5163d2ff2bf04019f8bf7e3bd0e75bb654CVE reference
- https://git.kernel.org/stable/c/a560aeac2f2d284903b5900774765d7fc61547bcCVE reference
- https://git.kernel.org/stable/c/a549517e4b761f3940011db30320cb8c9badde54CVE reference
- https://git.kernel.org/stable/c/3ad290194bb06979367622e47357462836c1d3b4CVE reference
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.