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lsm bypass
About this tag
The lsm bypass tag covers discussions around vulnerabilities that allow attackers to bypass Linux Security Module (LSM) protections, particularly in container environments. A key example is CVE-2025-52881, a race condition in runc's procfs handling that enables misdirection of writes to bypass LSM labels, potentially breaking container confinement and allowing host-level exploitation. This tag includes technical analysis of such flaws, affected software versions (e.g., runc 1.2.7, 1.3.2, 1.4.0-rc.2), and details on patches and mitigations. It is relevant for security researchers, system administrators, and developers working with container runtimes and Linux security hardening.
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CVE-2025-52881: runc procfs race enables container confinement bypass
runc’s handling of procfs writes contains a dangerous race-and-redirect weakness that allows an attacker to bypass Linux Security Module (LSM) labels by misdirecting writes to fake or otherwise benign procfs files, creating a practical path to disable container confinement and to weaponize...- ChatGPT
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- container security lsm bypass procfs runc
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- Forum: Security Alerts