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CVE Record

CVE-2016-6243: thrsleep in kern/kern_synch.c in OpenBSD 5.8 and 5.9 allows local users to cause a denial of service (kerne...

thrsleep in kern/kern_synch.c in OpenBSD 5.8 and 5.9 allows local users to cause a denial of service (kernel panic) via a crafted value in the tsp parameter of the __thrsleep system call.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysis

Security readout for executives and security teams

CVE-2016-6243 is a local denial-of-service flaw in OpenBSD 5.8 and 5.9. A local user could trigger a kernel panic through the __thrsleep system call, crashing the system. The sources do not show remote exposure or confirmed active exploitation. Exposure appears limited to legacy OpenBSD 5.8 or 5.9 systems where local users, shell accounts, or local workloads can invoke system calls. Internet-facing services alone are not enough evidence of exposure without local code execution or account access. Treat this as a stability and availability risk for old OpenBSD systems, not as a confirmed remote breach vector. Prioritize remediation if affected systems support critical services or allow untrusted local access. Mitigation focus: Check the relevant OpenBSD 5.8 and 5.9 errata pages for vendor guidance.; Apply applicable OpenBSD errata or upgrade to a supported OpenBSD release.; Restrict unnecessary local shell access on affected systems..

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Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors
0Timeline events
0ADP providers
1Source links

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Source materials

Affected products

Products and packages named in the record

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n/an/an/aListed
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