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CVE-2023-28642

Public on 2023-03-29
Modified on 2023-03-30
Description

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.

Severity
Medium
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CVSS v3 Base Score
6.1
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Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Docker Extra runc 2023-05-25 17:42 ALAS2DOCKER-2023-025
Amazon Linux 2 - Ecs Extra runc 2023-05-25 17:42 ALAS2ECS-2023-004
Amazon Linux 2 - Aws-nitro-enclaves-cli Extra runc 2023-05-25 17:41 ALAS2NITRO-ENCLAVES-2023-024
Amazon Linux 2023 runc 2023-06-07 23:52 ALAS2023-2023-208

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 6.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
NVD CVSSv3 6.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

References

Red Hat: CVE-2023-28642 Mitre: CVE-2023-28642 FAQs regarding Amazon Linux ALAS/CVE Severity