Out-of-bounds read in rpm - CVE-2021-20266

Vulnerability identifier: #VU54478

CSH Severity: Low

CVSS v4: 2.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-20266

CWE-ID: CWE-125

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the hdrblobInit() function in lib/header.c. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.

rpm
Gentoo Linux
SUSE Linux Enterprise Module for SUSE Manager Server
SUSE Linux Enterprise Module for SUSE Manager Proxy
SUSE MicroOS
IBM AIX
Anolis OS
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for IBM z Systems
SUSE Linux Enterprise Server
SUSE Linux Enterprise Server for SAP Applications
SUSE Linux Enterprise Software Development Kit
SUSE Linux Enterprise Module for Development Tools
SUSE Linux Enterprise Module for Public Cloud
SUSE Linux Enterprise Module for Python2
SUSE Linux Enterprise Module for Basesystem
Ubuntu
openEuler
Fedora
rpm (Red Hat package)
rpm (Ubuntu package)
rpm-common (Ubuntu package)
librpmsign8 (Ubuntu package)
librpmio8 (Ubuntu package)
librpmbuild8 (Ubuntu package)
librpm8 (Ubuntu package)
rpm-32bit
rpm-debuginfo-32bit
rpm-debuginfo
rpm-debugsource
rpm-devel
python3-rpm
python3-rpm-debuginfo
python3-rpm-debugsource
rpm-build
rpm-build-debuginfo
rpm-python
rpm-python-debuginfo
rpm-python-debugsource
rpm
python2-rpm
python2-rpm-debuginfo
python-rpm-debugsource
rpm-ndb-debugsource
rpm-ndb-debuginfo
rpm-ndb
rpm-32bit-debuginfo
rpm-libs
rpm-cron
rpm-apidocs
rpm-sign
rpm-plugin-systemd-inhibit
rpm-plugin-syslog
rpm-plugin-selinux
rpm-plugin-prioreset
rpm-plugin-ima
rpm-build-libs
rpm-help
Cloud Pak for Security (CP4S)
IBM VIOS
Red Hat OpenShift Serverless
Red Hat Advanced Cluster Management for Kubernetes
Red Hat Advanced Cluster Security for Kubernetes
Dell EMC NetWorker vProxy
RecoverPoint for VMs

Install updates from vendor's website.

rpm - update to 4.16.1.3
rpm (Red Hat package) - update to 4.14.3-19.el8
Cloud Pak for Security (CP4S) - update to 1.10.7.0
rpm (Ubuntu package) - addressed in versions 4.14.1+dfsg1-2ubuntu0.1~esm1, 4.14.2.1+dfsg1-1ubuntu0.1~esm1
rpm-common (Ubuntu package) - addressed in versions 4.14.1+dfsg1-2ubuntu0.1~esm1, 4.14.2.1+dfsg1-1ubuntu0.1~esm1
librpmsign8 (Ubuntu package) - addressed in versions 4.14.1+dfsg1-2ubuntu0.1~esm1, 4.14.2.1+dfsg1-1ubuntu0.1~esm1
librpmio8 (Ubuntu package) - addressed in versions 4.14.1+dfsg1-2ubuntu0.1~esm1, 4.14.2.1+dfsg1-1ubuntu0.1~esm1
librpmbuild8 (Ubuntu package) - addressed in versions 4.14.1+dfsg1-2ubuntu0.1~esm1, 4.14.2.1+dfsg1-1ubuntu0.1~esm1
librpm8 (Ubuntu package) - addressed in versions 4.14.1+dfsg1-2ubuntu0.1~esm1, 4.14.2.1+dfsg1-1ubuntu0.1~esm1
rpm-32bit - addressed in versions 4.11.2-16.26.1, 4.14.1-22.4.2, 4.14.3-37.2
rpm-debuginfo-32bit - update to 4.11.2-16.26.1
rpm-debuginfo - addressed in versions 4.11.2-16.26.1, 4.14.1-22.4.2, 4.14.3-37.2
rpm-debugsource - addressed in versions 4.11.2-16.26.1, 4.14.1-22.4.2, 4.14.3-37.2
rpm-devel - addressed in versions 4.11.2-16.26.1, 4.14.1-22.4.2, 4.14.3-37.2
python3-rpm - addressed in versions 4.11.2-16.26.1, 4.14.1-22.4.1, 4.14.3-37.2
python3-rpm-debuginfo - addressed in versions 4.11.2-16.26.1, 4.14.1-22.4.1, 4.14.3-37.2
python3-rpm-debugsource - update to 4.11.2-16.26.1
rpm-build - addressed in versions 4.11.2-16.26.1, 4.14.1-22.4.2, 4.14.3-37.2
rpm-build-debuginfo - addressed in versions 4.11.2-16.26.1, 4.14.1-22.4.2, 4.14.3-37.2
rpm-python - update to 4.11.2-16.26.1
rpm-python-debuginfo - update to 4.11.2-16.26.1
rpm-python-debugsource - update to 4.11.2-16.26.1
rpm - addressed in versions 4.11.2-16.26.1, 4.14.1-22.4.2, 4.14.3-37.2
python2-rpm - addressed in versions 4.14.1-22.4.1, 4.14.3-37.2
python2-rpm-debuginfo - addressed in versions 4.14.1-22.4.1, 4.14.3-37.2
python-rpm-debugsource - addressed in versions 4.14.1-22.4.1, 4.14.3-37.2
rpm-ndb-debugsource - addressed in versions 4.14.1-22.4.2, 4.14.3-37.2
rpm-ndb-debuginfo - addressed in versions 4.14.1-22.4.2, 4.14.3-37.2
rpm-ndb - addressed in versions 4.14.1-22.4.2, 4.14.3-37.2
rpm-32bit-debuginfo - addressed in versions 4.14.1-22.4.2, 4.14.3-37.2
rpm-libs - update to 4.14.3-19.0.2
rpm-cron - update to 4.14.3-19.0.2
rpm-apidocs - update to 4.14.3-19.0.2
rpm-sign - update to 4.14.3-19.0.2
rpm-plugin-systemd-inhibit - update to 4.14.3-19.0.2
rpm-plugin-syslog - update to 4.14.3-19.0.2
rpm-plugin-selinux - update to 4.14.3-19.0.2
rpm-plugin-prioreset - update to 4.14.3-19.0.2
rpm-plugin-ima - update to 4.14.3-19.0.2
rpm-devel - update to 4.14.3-19.0.2
rpm-build-libs - update to 4.14.3-19.0.2
rpm-build - update to 4.14.3-19.0.2
rpm - update to 4.14.3-19.0.2
python3-rpm - update to 4.14.3-19.0.2
rpm - update to 4.15.1-24
rpm-build - update to 4.15.1-24
rpm-libs - update to 4.15.1-24
python3-rpm - update to 4.15.1-24
rpm-devel - update to 4.15.1-24
rpm-help - update to 4.15.1-24
rpm-debuginfo - update to 4.15.1-24
rpm-debugsource - update to 4.15.1-24
python2-rpm - update to 4.15.1-24
rpm - addressed in versions 4.15.1.1-1.fc32.1, 4.16.1.3-1.fc33, 4.16.1.3-1.fc34
Red Hat OpenShift Serverless - update to 1.20.0
Red Hat Advanced Cluster Management for Kubernetes - update to 2.2.10
Red Hat Advanced Cluster Security for Kubernetes - update to 3.67
Dell EMC NetWorker vProxy - update to 4.3.0-40
RecoverPoint for VMs - update to 6.0.SP1.P1

• https://bugzilla.redhat.com/show_bug.cgi?id=1927741
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VHRPNBCRPDJHHQE3MBPSZK4H7X2IM7AC/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TMGXO3W6DHPO62GJ4VVF5DEUX5DRUR5K/

• Multiple vulnerabilities in RPM software manager
• Gentoo update for RPM
• Red Hat Enterprise Linux 8 update for rpm
• SUSE update for rpm
• SUSE update for rpm
• Multiple vulnerabilities in IBM AIX
• Multiple vulnerabilities in IBM VIOS
• SUSE update for rpm
• Multiple vulnerabilities in Dell NetWorker vProxy
• Multiple vulnerabilities in IBM Cloud Pak for Security (CP4S)
• openEuler 20.03 LTS SP1 update for rpm
• Multiple vulnerabilities in Red Hat Advanced Cluster Security for Kubernetes 3.67
• Multiple vulnerabilities in Red Hat OpenShift Serverless 1.20
• Fedora 34 update for rpm
• Fedora 33 update for rpm
• Fedora 32 update for rpm
• Multiple vulnerabilities in Dell RecoverPoint for Virtual Machines
• Anolis OS update for rpm
• Multiple vulnerabilities in Red Hat Advanced Cluster Management for Kubernetes 2.2
• Ubuntu update for rpm