CVE-2019-5188 Memory corruption in E2fsprogs
A crafted ext4 directory triggers an out-of-bounds write in e2fsck, allowing attackers to execute arbitrary code by corrupting a partition.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-5188?
CVE-2019-5188 is a high-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 8 Jan 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A code execution vulnerability exists in the directory rehashing functionality of E2fsprogs e2fsck 1.45.4. A specially crafted ext4 directory can cause an out-of-bounds write on the stack, resulting in code execution. An attacker can corrupt a partition to trigger this vulnerability.
Weakness: CWE-787
Which versions are affected by CVE-2019-5188?
It affects 7 products.
Linux distribution packages (10)
e2fsprogs SUSE:Linux Enterprise Desktop 12 SP4 | All versions | 1.43.8-3.11.1 |
e2fsprogs SUSE:Linux Enterprise Module for Basesystem 15 | All versions | 1.43.8-4.17.1 |
e2fsprogs SUSE:Linux Enterprise Module for Basesystem 15 SP1 | All versions | 1.43.8-4.17.1 |
e2fsprogs SUSE:Linux Enterprise Server 12 SP4 | All versions | 1.43.8-3.11.1 |
e2fsprogs SUSE:Linux Enterprise Server 12 SP5 | All versions | 1.43.8-3.11.1 |
e2fsprogs SUSE:Linux Enterprise Server for SAP Applications 12 SP4 | All versions | 1.43.8-3.11.1 |
e2fsprogs SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | All versions | 1.43.8-3.11.1 |
e2fsprogs SUSE:Linux Enterprise Software Development Kit 12 SP4 | All versions | 1.43.8-3.11.1 |
e2fsprogs SUSE:Linux Enterprise Software Development Kit 12 SP5 | All versions | 1.43.8-3.11.1 |
e2fsprogs openSUSE:Leap 15.1 | All versions | 1.43.8-lp151.5.12.1 |
Products include Canonical Ubuntu Linux, Debian Debian Linux, E2fsprogs Project E2fsprogs, Fedoraproject Fedora, Netapp Hci Compute Node Firmware, Netapp Solidfire\, Enterprise Sds \& Hci Storage Node and 1 more.
How do I fix CVE-2019-5188?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2019-5188 being exploited?
There is no known exploitation of CVE-2019-5188 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as ALPINE-CVE-2019-5188, CLEANSTART-2024-DX96304, DEBIAN-CVE-2019-5188, DLA-2156-1, DLA-2290-1, GHSA-qv2m-8j7x-p5c8 and 6 more.