CVE-2022-50200: selinux: Add boundary check in put_entry()
In the Linux kernel, the following vulnerability has been resolved:
selinux: Add boundary check in put_entry()
Just like next_entry(), boundary check is necessary to prevent memory
out-of-bound access.
Security readout for executives and security teams
Plain-English summary
This CVE is a Linux kernel SELinux memory-safety fix. The public record says a missing boundary check in put_entry() could allow out-of-bounds memory access. Business urgency is unclear because the source bundle provides no CVSS score, no impact rating, and no active exploitation evidence.
Executive priority
Handle through normal Linux kernel patch governance unless local exposure is high. Escalate priority for sensitive SELinux-dependent systems, but avoid emergency response claims without CVSS, exploit evidence, or vendor impact details.
Technical view
The resolved issue adds a boundary check in SELinux put_entry(), matching next_entry(), to prevent memory out-of-bounds access. The CVE record identifies Linux kernel versions as affected and links multiple stable kernel commits. The bundle does not describe attacker privileges, reachability, crash behavior, data exposure, or privilege-escalation impact.
Likely exposure
Exposure is most likely on systems running affected Linux kernels with SELinux support present. Actual risk depends on distribution backports, kernel configuration, and whether SELinux policy loading or related SELinux paths are reachable. The bundle does not provide a complete affected-version matrix.
Exploitation context
The source bundle marks KEV as false and provides no cited evidence of active exploitation, public exploit availability, or real-world attacks. Treat exploitation status as unconfirmed, not known-active.
Researcher notes
The record is sparse. It identifies an SELinux out-of-bounds access fix but omits root cause depth, trigger conditions, exploitability, and security impact. Researchers should anchor analysis to the stable commits and vendor advisories rather than infer privilege escalation or remote reachability.
Mitigation direction
Update to a vendor-supported kernel containing the referenced SELinux boundary-check fix.
Check distribution advisories for backported fixes before judging by version string alone.
Prioritize internet-facing, multi-tenant, and high-assurance Linux systems using SELinux.
Track vendor guidance if running custom or long-term support kernels.
Validation and detection
Inventory Linux kernel versions across servers, containers hosts, and appliances.
Confirm whether SELinux is enabled or compiled into deployed kernels.
Compare installed kernels against vendor advisories and the referenced stable commits.
Review patch management records for SELinux kernel fixes around this CVE.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CVE-2022-50200 mapping review
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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.
0CVSS vectors
3Timeline events
0ADP providers
9Source links
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.
Jun 18, 2025, 11:03 UTC (UTC+00:00)
CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.