# 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 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.

- Page: https://www.vulneraibility.com/cve/CVE-2015-1328
- CVSS: 7.8
- Known exploited: not in CISA KEV as of our last sync
- EPSS: 37.68% (percentile 98.6)
- Public exploit code: 3 on Exploit-DB · 1 Metasploit module · 11 GitHub proofs of concept (first 2015-06-16)
- Published: 2016-11-28

## Affected

- canonical:ubuntu_linux
- linux:linux_kernel

## References

- [other] https://people.canonical.com/~ubuntu-security/cve/2015/CVE-2015-1328.html
- [other] http://www.securityfocus.com/bid/75206
- [exploit] https://www.exploit-db.com/exploits/37292/
- [exploit] http://www.exploit-db.com/exploits/40688/
- [other] https://security-tracker.debian.org/tracker/CVE-2015-1328
- [other] http://seclists.org/oss-sec/2015/q2/717

---
Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.