CVE-2018-10883

What it is

A flaw was found in the Linux kernel's ext4 filesystem. A local user can cause an out-of-bounds write in jbd2_journal_dirty_metadata(), a denial of service, and a system crash by mounting and operating on a crafted ext4 filesystem image.

At a glance

Exploitability

Can be exploited with physical access without logging in. High risk of service disruption.

Exploit odds

0.5% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2018-07-30 16:29 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 01:34 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.5% in the next 30 days (EPSS).
• Severity: 4.8 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2018-07-30 16:29 UTC

Last modified

2026-06-17 01:34 UTC

Exploit probability

0.5% · EPSS, next 30 days

Weakness

CWE-787 · Out-of-bounds write

Record status

Modified

Affected

• Debian Linux 8.0
• Linux Kernel < 4.9.110
• Canonical Ubuntu Linux 14.04
• Canonical Ubuntu Linux 16.04
• Canonical Ubuntu Linux 18.04
• Redhat Enterprise Linux 7.0
• Redhat Enterprise Linux Desktop 7.0
• Redhat Enterprise Linux Server 7.0

Attack profile CVSS 3.0 · 4.8

Attack vector

Physical

Complexity

High

Privileges needed

None

User interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

High

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2018-10883.md and follow it. Check whether this project is affected by CVE-2018-10883. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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