Incorrect Default Permissions Affecting runc package, versions <4:1.1.4-1.el9
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Test your applications- Snyk ID SNYK-CENTOS9-RUNC-2888405
- published 7 Jun 2022
- disclosed 13 May 2022
Introduced: 13 May 2022
CVE-2022-29162 Open this link in a new tabHow to fix?
Upgrade Centos:9 runc to version 4:1.1.4-1.el9 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream runc package and not the runc package as distributed by Centos.
See How to fix? for Centos:9 relevant fixed versions and status.
runc is a CLI tool for spawning and running containers on Linux according to the OCI specification. A bug was found in runc prior to version 1.1.2 where runc exec --cap created processes with non-empty inheritable Linux process capabilities, creating an atypical Linux environment and enabling programs with inheritable file capabilities to elevate those capabilities to the permitted set during execve(2). This bug did not affect the container security sandbox as the inheritable set never contained more capabilities than were included in the container's bounding set. This bug has been fixed in runc 1.1.2. This fix changes runc exec --cap behavior such that the additional capabilities granted to the process being executed (as specified via --cap arguments) do not include inheritable capabilities. In addition, runc spec is changed to not set any inheritable capabilities in the created example OCI spec (config.json) file.
References
- https://access.redhat.com/security/cve/CVE-2022-29162
- https://access.redhat.com/errata/RHSA-2022:8090
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AVPZBV7ISA7QKRPTC7ZXWKMIQI2HZEBB/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/D77CKD3AXPMU4PMQIQI5Q74SI4JATNND/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GPQU4YC4AAY54JDXGDQHJEYKSXXG5T2Y/
- https://github.com/opencontainers/runc/commit/d04de3a9b72d7a2455c1885fc75eb36d02cd17b5
- https://github.com/opencontainers/runc/releases/tag/v1.1.2
- https://github.com/opencontainers/runc/security/advisories/GHSA-f3fp-gc8g-vw66
- https://lists.debian.org/debian-lts-announce/2023/03/msg00023.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AVPZBV7ISA7QKRPTC7ZXWKMIQI2HZEBB/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D77CKD3AXPMU4PMQIQI5Q74SI4JATNND/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GPQU4YC4AAY54JDXGDQHJEYKSXXG5T2Y/