Out-of-bounds write in E2fsprogs - CVE-2019-5094

Vulnerability identifier: #VU21329

CSH Severity: Low

CVSS v4 BT: 7.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2019-5094

CWE-ID: CWE-787

Exploitation vector: Local access

Exploit availability: No public exploit available

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

The vulnerability exists due to a boundary error when processing untrusted input in the quota file functionality. A local user can send a specially crafted xt4 partition, trigger out-of-bounds write on the heap and execute arbitrary code on the target system.

Note: An attacker can corrupt a partition to trigger this vulnerability.

E2fsprogs
Gentoo Linux
Amazon Linux AMI
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for x86_64
Fedora
Ansible Automation Platform
e2fsprogs (Red Hat package)
e2fsprogs (Ubuntu package)
e2fsprogs (Alpine package)
e2fsprogs (Debian package)
e2fsprogs
IBM QRadar Network Security
Data Computing Appliance (DCA)
Red Hat OpenShift Container Platform

Install updates from vendor's website.

E2fsprogs - update to 1.45.4
Ansible Automation Platform - addressed in versions 1.0, 1.1, 1.2.4
e2fsprogs (Red Hat package) - addressed in versions 1.42.9-19.el7, 1.45.4-3.el8
e2fsprogs (Ubuntu package) - addressed in versions 1.42.13-1ubuntu1.1, 1.44.1-1ubuntu1.2, 1.44.6-1ubuntu0.1
e2fsprogs (Alpine package) - addressed in versions 1.43.7-r1, 1.44.2-r1
e2fsprogs (Debian package) - addressed in versions 1.43.4-2+deb9u1, 1.44.5-1+deb10u2
IBM QRadar Network Security - addressed in versions 5.4.0.13, 5.5.0.8
e2fsprogs - addressed in versions 1.44.6-2.fc30, 1.45.5-1.fc31
Data Computing Appliance (DCA) - update to 4.3.0.0
Red Hat OpenShift Container Platform - update to 4.3.40

• https://talosintelligence.com/vulnerability_reports/TALOS-2019-0887

• Privilege escalation in E2fsprogs
• Debian update for e2fsprogs
• Ubuntu update for e2fsprogs
• Gentoo update for e2fsprogs
• Red Hat Enterprise Linux 8 update for e2fsprogs
• Out-of-bounds write in e2fsprogs (Alpine package)
• Red Hat Enterprise Linux 7 update for e2fsprogs
• Amazon Linux AMI update for e2fsprogs
• Amazon Linux AMI update for e2fsprogs
• Multiple vulnerabilities in IBM QRadar Network Security
• Multiple vulnerabilities in Dell EMC Data Computing Appliance (DCA)
• Multiple vulnerabilities in Red Hat Ansible Automation Platform 1.2
• Multiple vulnerabilities in Ansible Automation Platform 1.0 packages
• Multiple vulnerabilities in Ansible Automation Platform 1.1 packages
• Multiple vulnerabilities in Red Hat OpenShift Container Platform 4.3
• Fedora 31 update for e2fsprogs
• Fedora 30 update for e2fsprogs