Bug 1215711

Summary:	VUL-0: CVE-2023-25173: helm, helm3: Supplementary groups are not set up properly
Product:	[Novell Products] SUSE Security Incidents	Reporter:	Robert Frohl <rfrohl>
Component:	Incidents	Assignee:	Security Team bot <security-team>
Status:	RESOLVED FIXED	QA Contact:	Security Team bot <security-team>
Severity:	Normal
Priority:	P3 - Medium	CC:	asarai, containers-bugowner, meissner, security-team, stoyan.manolov, thomas.leroy
Version:	unspecified
Target Milestone:	---
Hardware:	Other
OS:	Other
URL:	https://smash.suse.de/issue/357413/
Whiteboard:
Found By:	Security Response Team	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---
Bug Depends on:	1208426
Bug Blocks:

Description Robert Frohl 2023-09-26 08:20:11 UTC

+++ This bug was initially created as a clone of Bug #1208426 +++

CVE-2023-25173

containerd is an open source container runtime. A bug was found in containerd
prior to versions 1.6.18 and 1.5.18 where supplementary groups are not set up
properly inside a container. If an attacker has direct access to a container and
manipulates their supplementary group access, they may be able to use
supplementary group access to bypass primary group restrictions in some cases,
potentially gaining access to sensitive information or gaining the ability to
execute code in that container. Downstream applications that use the containerd
client library may be affected as well. This bug has been fixed in containerd
v1.6.18 and v.1.5.18. Users should update to these versions and recreate
containers to resolve this issue. Users who rely on a downstream application
that uses containerd's client library should check that application for a
separate advisory and instructions. As a workaround, ensure that the `"USER
$USERNAME"` Dockerfile instruction is not used. Instead, set the container
entrypoint to a value similar to `ENTRYPOINT ["su", "-", "user"]` to allow `su`
to properly set up supplementary groups.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-25173
https://github.com/moby/moby/security/advisories/GHSA-rc4r-wh2q-q6c4
https://github.com/containerd/containerd/releases/tag/v1.5.18
https://github.com/containerd/containerd/releases/tag/v1.6.18
https://www.cve.org/CVERecord?id=CVE-2023-25173
https://github.com/advisories/GHSA-4wjj-jwc9-2x96
https://github.com/advisories/GHSA-fjm8-m7m6-2fjp
https://github.com/advisories/GHSA-phjr-8j92-w5v7
https://github.com/containerd/containerd/commit/133f6bb6cd827ce35a5fb279c1ead12b9d21460a
https://github.com/containerd/containerd/security/advisories/GHSA-hmfx-3pcx-653p
https://www.benthamsgaze.org/2022/08/22/vulnerability-in-linux-containers-investigation-and-mitigation/

Comment 2 Dirk Mueller 2023-10-04 09:47:41 UTC

if I understand this correctly, this has been fixed in helm 3.12.0. we have a pending security update in https://build.suse.de/package/show/SUSE:Maintenance:30887/helm.SUSE_SLE-15_Update that updates to 3.13.0 which should include the fix. 

I've adjusted the changes file to include the bug and CVE reference and submitted that again under SR 309201

Comment 3 OBSbugzilla Bot 2023-10-04 10:35:16 UTC

This is an autogenerated message for OBS integration:
This bug (1215711) was mentioned in
https://build.opensuse.org/request/show/1115550 Factory / helm

Comment 6 Maintenance Automation 2023-10-19 08:54:57 UTC

SUSE-SU-2023:4124-1: An update that solves two vulnerabilities and has one security fix can now be installed.

Category: security (important)
Bug References: 1183043, 1215588, 1215711
CVE References: CVE-2022-41723, CVE-2023-25173
Sources used:
Containers Module 15-SP4 (src): helm-3.13.1-150000.1.26.1
Containers Module 15-SP5 (src): helm-3.13.1-150000.1.26.1
SUSE Package Hub 15 15-SP4 (src): helm-3.13.1-150000.1.26.1
SUSE Package Hub 15 15-SP5 (src): helm-3.13.1-150000.1.26.1
SUSE Linux Enterprise High Performance Computing ESPOS 15 SP3 (src): helm-3.13.1-150000.1.26.1
SUSE Linux Enterprise High Performance Computing LTSS 15 SP3 (src): helm-3.13.1-150000.1.26.1
SUSE Linux Enterprise Server 15 SP3 LTSS 15-SP3 (src): helm-3.13.1-150000.1.26.1
SUSE Linux Enterprise Server for SAP Applications 15 SP3 (src): helm-3.13.1-150000.1.26.1
SUSE Enterprise Storage 7.1 (src): helm-3.13.1-150000.1.26.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.