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CVE-2023-28642

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Date: March 29, 2023

runc is a CLI tool for spawning and running containers according to the OCI specification. It was found that AppArmor can be bypassed when `/proc` inside the container is symlinked with a specific mount configuration. This issue has been fixed in runc version 1.1.5, by prohibiting symlinked `/proc`. See PR #3785 for details. users are advised to upgrade. Users unable to upgrade should avoid using an untrusted container image.

Language: Go

Severity Score

Related Resources (6)

https://github.com/opencontainers/runc/pull/3785
https://nvd.nist.gov/vuln/detail/CVE-2023-28642
https://access.redhat.com/security/cve/CVE-2023-28642
https://github.com/opencontainers/runc
https://github.com/opencontainers/runc/security/advisories/GHSA-g2j6-57v7-gm8c
https://www.mend.io/vulnerability-database/CVE-2023-28642

Severity Score

Weakness Type (CWE)

Link Following

CWE-59

Improper Preservation of Permissions

CWE-281

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): CHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): LOW

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