Link following in rpm - CVE-2021-35938

Vulnerability identifier: #VU79521

CSH Severity: Low

CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-35938

CWE-ID: CWE-59

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local privileged user to escalate privileges on the system.

The vulnerability occurs when rpm sets the desired permissions and credentials after installing a file. A local privileged user can use this flaw to exchange the original file with a symbolic link to a security-critical file and escalate their privileges on the system.

rpm
Gentoo Linux
Amazon Linux AMI
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for x86_64
Anolis OS
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
openEuler
Red Hat OpenShift Builds
Migration Toolkit for Runtimes
Service Telemetry Framework
Service Interconnect
Cryostat
Red Hat Advanced Cluster Management for Kubernetes
Red Hat Advanced Cluster Security for Kubernetes
OpenShift Logging
AppDynamics NodeJS Agent
Multicluster GlobalHub
Custom Metrics Autoscaler Operator for Red Hat OpenShift
Red Hat OpenShift distributed tracing (RHOSDT)
IBM Cloud Transformation Advisor
Red Hat OpenShift Dev Spaces
App Connect Enterprise Certified Container
Red Hat Migration Toolkit for Applications
IBM Security Verify Governance
Red Hat OpenStack
Red Hat OpenShift Serverless
OpenShift Container Platform for Windows Containers
OpenShift Data Foundation (formerly OpenShift Container Storage)
OpenShift API for Data Protection (OADP)
Network Observability plugin for the Openshift Console
Migration Toolkit for Containers
Red Hat OpenShift Container Platform
Juniper Secure Analytics (JSA)
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
rpm (Red Hat package)
python3-rpm
rpm-devel
rpm
rpm-plugin-ima
rpm-build
rpm-plugin-fapolicyd
rpm-build-libs
rpm-libs
rpm-plugin-prioreset
rpm-cron
rpm-apidocs
rpm-sign
rpm-plugin-systemd-inhibit
rpm-plugin-syslog
rpm-plugin-selinux
python2-rpm
rpm-debugsource
rpm-debuginfo
rpm-help
app-arch/rpm
webMethods Managed File Transfer
Storage Ceph
Dell Data Protection Central
Red Hat OpenShift GitOps
IBM Qradar SIEM
AMQ Broker

Install updates from vendor's website.

rpm - update to 4.18.0
Red Hat OpenShift Builds - update to 1.0.1
Red Hat OpenShift Serverless - update to 1.32.0
Migration Toolkit for Runtimes - update to 1.2.5
OpenShift API for Data Protection (OADP) - update to 1.3.1
Service Telemetry Framework - update to 1.5.4
Service Interconnect - update to 1.5.3
Migration Toolkit for Containers - addressed in versions 1.7.15, 1.8.3
Red Hat Advanced Cluster Management for Kubernetes - addressed in versions 2.8.5, 2.9.3
Red Hat Advanced Cluster Security for Kubernetes - update to 4.3.5
Red Hat OpenShift Container Platform - addressed in versions 4.12.53, 4.15.0
Juniper Secure Analytics (JSA) - update to 7.5.0 UP8 IF03
OpenShift Container Platform for Windows Containers - addressed in versions 8.1.2, 9.0.1, 10.15.0
AppDynamics NodeJS Agent - update to 25.12.1
Multicluster GlobalHub - update to 1.0.2
Network Observability plugin for the Openshift Console - update to 1.5.0
Red Hat OpenShift GitOps - addressed in versions 1.10.0, 1.11
Custom Metrics Autoscaler Operator for Red Hat OpenShift - update to 2.12.1-376
Red Hat OpenShift distributed tracing (RHOSDT) - update to 3.1.0
IBM Cloud Transformation Advisor - update to 3.10.0
Red Hat OpenShift Dev Spaces - update to 3.15.0
rpm (Red Hat package) - addressed in versions 4.14.3-26.el8_6, 4.14.3-28.el8_8, 4.14.3-28.el8_9, 4.16.1.3-14.el9_0.1, 4.16.1.3-27.el9_3
python3-rpm - update to 4.14.3-27.0.5
rpm-devel - update to 4.14.3-27.0.5
rpm - update to 4.14.3-27.0.5
rpm-plugin-ima - update to 4.14.3-27.0.5
rpm-build - update to 4.14.3-27.0.5
rpm-plugin-fapolicyd - update to 4.14.3-27.0.5
rpm-build-libs - update to 4.14.3-27.0.5
rpm-libs - update to 4.14.3-27.0.5
rpm-plugin-prioreset - update to 4.14.3-27.0.5
rpm-cron - update to 4.14.3-27.0.5
rpm-apidocs - update to 4.14.3-27.0.5
rpm-sign - update to 4.14.3-27.0.5
rpm-plugin-systemd-inhibit - update to 4.14.3-27.0.5
rpm-plugin-syslog - update to 4.14.3-27.0.5
rpm-plugin-selinux - update to 4.14.3-27.0.5
OpenShift Data Foundation (formerly OpenShift Container Storage) - update to 4.15.0
rpm - update to 4.15.1-28
rpm-devel - update to 4.15.1-28
python2-rpm - update to 4.15.1-28
rpm-plugin-systemd-inhibit - update to 4.15.1-28
rpm-debugsource - update to 4.15.1-28
rpm-debuginfo - update to 4.15.1-28
rpm-libs - update to 4.15.1-28
rpm-build - update to 4.15.1-28
python3-rpm - update to 4.15.1-28
rpm-help - update to 4.15.1-28
rpm - update to 4.16.1.3-29
app-arch/rpm - update to 4.18.0
App Connect Enterprise Certified Container - addressed in versions 5.0.15, 11.3.0
Red Hat Migration Toolkit for Applications - update to 6.2
Storage Ceph - update to 7.0
IBM Qradar SIEM - update to 7.5.0 Update Pack 8 IF01
AMQ Broker - update to 7.12.0
IBM Security Verify Governance - update to 10.0.2.0.4
Red Hat OpenStack - update to 16.2
Dell Data Protection Central - update to 19.9

• https://bugzilla.redhat.com/show_bug.cgi?id=1964114
• https://github.com/rpm-software-management/rpm/pull/1919
• https://bugzilla.suse.com/show_bug.cgi?id=1157880
• https://github.com/rpm-software-management/rpm/commit/25a435e90844ea98fe5eb7bef22c1aecf3a9c033
• https://access.redhat.com/security/cve/CVE-2021-35938
• https://rpm.org/wiki/Releases/4.18.0
• https://security.gentoo.org/glsa/202210-22

• Multiple vulnerabilities in Dell Data Protection Central
• Red Hat Enterprise Linux 9.0 Extended Update Support update for rpm
• Red Hat Enterprise Linux 8.6 Extended Update Support update for rpm
• Red Hat Enterprise Linux 9 update for rpm
• Red Hat Enterprise Linux 8.8 Extended Update Support update for rpm
• Red Hat Enterprise Linux 8 update for rpm
• Multiple vulnerabilities in Red Hat Advanced Cluster Management 2.8
• Multiple vulnerabilities in Red Hat Network Observability
• Multiple vulnerabilities in Red Hat Multicluster GlobalHub
• Multiple vulnerabilities in Red Hat Openshift distributed tracing
• Multiple vulnerabilities in Red Hat OpenShift for Windows Containers 10.15
• Multiple vulnerabilities in Red Hat OpenShift Container Platform 4.15
• Multiple vulnerabilities in Red Hat Migration Toolkit for Applications
• Multiple vulnerabilities in IBM App Connect Enterprise Certified Container
• openEuler update for rpm
• Multiple vulnerabilities in Service Telemetry Framework 1.5
• Multiple vulnerabilities in Red Hat OpenShift for Windows Containers 9.0
• Multiple vulnerabilities in Red Hat OpenShift Data Foundation 4.15
• Multiple vulnerabilities in Red Hat OpenShift GitOps
• Multiple vulnerabilities in Red Hat OpenShift GitOps
• Multiple vulnerabilities in Red Hat OpenShift support for Windows Containers 8.1
• Multiple vulnerabilities in Red Hat OpenShift Container Platform 4.12
• Multiple vulnerabilities in Red Hat Advanced Cluster Security for Kubernetes 4.3
• Multiple vulnerabilities in Red Hat OpenShift Builds
• Multiple vulnerabilities in Red Hat OpenShift Serverless
• Multiple vulnerabilities in Red Hat Advanced Cluster Management 2.9
• Multiple vulnerabilities in Logging Subsystem 5.6 for Red Hat OpenShift for RHEL 8
• Multiple vulnerabilities in Logging Subsystem 5.7 for Red Hat OpenShift for RHEL 8
• Multiple vulnerabilities in IBM QRadar SIEM
• Multiple vulnerabilities in Custom Metrics Autoscaler Operator for Red Hat OpenShift
• Multiple vulnerabilities in OpenShift API for Data Protection (OADP) 1.3
• Multiple vulnerabilities in Red Hat Service Interconnect 1.5
• Multiple vulnerabilities in Migration Toolkit for Runtimes 1.2
• Multiple vulnerabilities in Red Hat Migration Toolkit for Containers (MTC) 1.8
• Multiple vulnerabilities in Red Hat build of Cryostat 2 on RHEL 8
• Multiple vulnerabilities in Red Hat Migration Toolkit for Containers (MTC) 1.7
• Multiple vulnerabilities in AMQ Broker 7.12
• Multiple vulnerabilities in Red Hat OpenStack 16.2 packages
• Multiple vulnerabilities in Juniper Secure Analytics (JSA)
• Multiple vulnerabilities in Red Hat OpenShift Dev Spaces
• Multiple vulnerabilities in IBM Cloud Transformation Advisor
• Amazon Linux AMI update for rpm
• Link following in IBM Storage Ceph
• Multiple vulnerabilities in IBM Security Verify Governance - Identity Manager
• Gentoo update for RPM
• Anolis OS update for rpm
• Multiple vulnerabilities in IBM webMethods Managed File Transfer
• Splunk AppDynamics NodeJS Agent update for third-party components