CVE-2015-1340

What it is

LXD before version 0.19-0ubuntu5 doUidshiftIntoContainer() has an unsafe Chmod() call that races against the stat in the Filepath.Walk() function. A symbolic link created in that window could cause any file on the system to have any mode of the attacker's choice.

At a glance

Exploitability

Can be exploited with physical access with a low-privilege account. High risk of data exposure, data tampering, service disruption.

Exploit odds

0.9% chance of exploitation in the next 30 days (EPSS).

Fix

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

Timeline

1. 2019-04-22 16:29 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 00:22 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.9% in the next 30 days (EPSS).
• Severity: 7.0 HIGH (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2019-04-22 16:29 UTC

Last modified

2026-06-17 00:22 UTC

Exploit probability

0.9% · EPSS, next 30 days

Weakness

CWE-362 · Race condition

Record status

Modified

Affected

• Linuxcontainers Lxd

Attack profile CVSS 3.0 · 7.0

Attack vector

Physical

Complexity

High

Privileges needed

Low

User interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

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-2015-1340.md and follow it. Check whether this project is affected by CVE-2015-1340. 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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