An unprivileged user in a jail that has permission to debug the target process can modify the jailed root user's ktrace(2) flags, or disable tracing outright. A jailed root user therefore cannot reliably trace unprivileged processes.
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Thu, 27 Aug 2026 16:30:00 +0000
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cvssV3_1
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Wed, 19 Aug 2026 11:00:00 +0000
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| First Time appeared |
Freebsd
Freebsd freebsd |
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| Vendors & Products |
Freebsd
Freebsd freebsd |
Wed, 19 Aug 2026 07:45:00 +0000
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| Description | As an inadvertent side effect of an unrelated code change, PRIV_KTRACE was always denied to a jailed root user. Tracing configured by a jailed root user was therefore not flagged as privileged. An unprivileged user in a jail that has permission to debug the target process can modify the jailed root user's ktrace(2) flags, or disable tracing outright. A jailed root user therefore cannot reliably trace unprivileged processes. | |
| Title | ktrace(2) privilege incorrectly validated in jails | |
| Weaknesses | CWE-273 | |
| References |
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Status: PUBLISHED
Assigner: freebsd
Published:
Updated: 2026-08-27T15:54:55.678Z
Reserved: 2026-06-29T01:40:17.498Z
Link: CVE-2026-58086
Updated: 2026-08-27T15:54:40.488Z
Status : Awaiting Analysis
Published: 2026-08-19T08:17:12.777
Modified: 2026-08-27T17:18:53.070
Link: CVE-2026-58086
No data.
OpenCVE Enrichment
Updated: 2026-08-27T19:15:03Z