runc before 1.0.0-rc95 allows a Container Filesystem Breakout via Directory Traversal. To exploit the vulnerability, an attacker must be able to create multiple containers with a fairly specific mount configuration. The problem occurs via a symlink-exchange attack that relies on a race condition.

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-3369-1 runc security update
EUVD EUVD EUVD-2021-1034 runc before 1.0.0-rc95 allows a Container Filesystem Breakout via Directory Traversal. To exploit the vulnerability, an attacker must be able to create multiple containers with a fairly specific mount configuration. The problem occurs via a symlink-exchange attack that relies on a race condition.
Github GHSA Github GHSA GHSA-c3xm-pvg7-gh7r mount destinations can be swapped via symlink-exchange to cause mounts outside the rootfs
Ubuntu USN Ubuntu USN USN-4867-1 runC vulnerabilities
Ubuntu USN Ubuntu USN USN-4960-1 runC vulnerability
Fixes

Solution

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Workaround

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-03T22:32:40.599Z

Reserved: 2021-04-08T00:00:00

Link: CVE-2021-30465

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-05-27T13:15:08.077

Modified: 2024-11-21T06:03:58.593

Link: CVE-2021-30465

cve-icon Redhat

Severity : Important

Publid Date: 2021-05-19T10:00:00Z

Links: CVE-2021-30465 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses