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kubernetes: Symlink exchange can allow host filesystem access

🗓️ 30 Sep 2021 19:31:31Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 4 Views

Kubernetes symlink exchange lets an authorized user access the host filesystem via crafted subpath mounts.

Related
Packages
Refs
ReporterTitlePublishedViews
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githubexploit
GithubExploit		Exploit for Improper Input Validation in Kubernetes
19 Jan 202214:05
–githubexploit
ibm
IBM Security Bulletins		Security Bulletin: IBM Cloud Pak for Security includes components with multiple known vulnerabilities
8 Jun 202321:56
–ibm
ibm
IBM Security Bulletins		Security Bulletin: Security Vulnerabilities affect IBM Cloud Private - Kubernetes (CVE-2021-25741)
22 Apr 202220:12
–ibm
ibm
IBM Security Bulletins		Security Bulletin: A vulnerability in Kubernetes affects IBM InfoSphere Information Server
19 Feb 202202:42
–ibm
ibm
IBM Security Bulletins		Security Bulletin: Red Hat OpenShift on IBM Cloud is affected by a Kubernetes kubelet security vulnerability (CVE-2021-25741)
11 Nov 202117:32
–ibm
ibm
IBM Security Bulletins		Security Bulletin: Multiple Vulnerabilities in IBM Concert Software.
18 Aug 202504:31
–ibm
ibm
IBM Security Bulletins		Security Bulletin: IBM Sterling Order Management Kubernetes vulnerability
20 Oct 202220:50
–ibm
ibm
IBM Security Bulletins		Security Bulletin: IBM Cloud Kubernetes Service is affected by a Kubernetes kubelet security vulnerability (CVE-2021-25741)
7 Oct 202113:56
–ibm
altlinux
ALT Linux		Security fix for the ALT Linux 10 package kubernetes version 1.22.4-alt1
2 Dec 202100:00
–altlinux
attackerkb
ATTACKERKB		CVE-2021-25741
20 Sep 202117:15
–attackerkb
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux7ppc64leatomic-openshift3.11.524-1.git.0.2dffce7.el7atomic-openshift-3.11.524-1.git.0.2dffce7.el7.ppc64le.rpm
Red Hat Enterprise Linux7x86_64atomic-openshift3.11.524-1.git.0.2dffce7.el7atomic-openshift-3.11.524-1.git.0.2dffce7.el7.x86_64.rpm
Red Hat Enterprise Linux7ppc64leatomic-openshift-clients3.11.524-1.git.0.2dffce7.el7atomic-openshift-clients-3.11.524-1.git.0.2dffce7.el7.ppc64le.rpm
Red Hat Enterprise Linux7x86_64atomic-openshift-clients3.11.524-1.git.0.2dffce7.el7atomic-openshift-clients-3.11.524-1.git.0.2dffce7.el7.x86_64.rpm
Red Hat Enterprise Linux7x86_64atomic-openshift-clients-redistributable3.11.524-1.git.0.2dffce7.el7atomic-openshift-clients-redistributable-3.11.524-1.git.0.2dffce7.el7.x86_64.rpm
Red Hat Enterprise Linux7noarchatomic-openshift-docker-excluder3.11.524-1.git.0.2dffce7.el7atomic-openshift-docker-excluder-3.11.524-1.git.0.2dffce7.el7.noarch.rpm
Red Hat Enterprise Linux7noarchatomic-openshift-excluder3.11.524-1.git.0.2dffce7.el7atomic-openshift-excluder-3.11.524-1.git.0.2dffce7.el7.noarch.rpm
Red Hat Enterprise Linux7ppc64leatomic-openshift-hyperkube3.11.524-1.git.0.2dffce7.el7atomic-openshift-hyperkube-3.11.524-1.git.0.2dffce7.el7.ppc64le.rpm
Red Hat Enterprise Linux7x86_64atomic-openshift-hyperkube3.11.524-1.git.0.2dffce7.el7atomic-openshift-hyperkube-3.11.524-1.git.0.2dffce7.el7.x86_64.rpm
Red Hat Enterprise Linux7ppc64leatomic-openshift-hypershift3.11.524-1.git.0.2dffce7.el7atomic-openshift-hypershift-3.11.524-1.git.0.2dffce7.el7.ppc64le.rpm
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03 Jul 2026 02:10Current
6.9Medium risk
Vulners AI Score6.9
CVSS 25.5
CVSS 3.18.1 - 8.8
EPSS0.07964
SSVC
CWE-59
Kubernetessymlink exchangesubpath mountshost filesystem accessauthorized user
4