CVE-2015-1328

high

Published 2016-11-28 · Modified 2026-05-06

CVSS v3

7.8

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2

7.2

VIR risk

7.8

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.

Predictions

Exploit likelihood

75%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2015-1328

vendor Authored 2026-05-27

Vendor advisory: security@ubuntu.com — https://people.canonical.com/~ubuntu-security/cve/2015/CVE-2015-1328.html

OS impact

OS	Version	Status	Fixed in
debian	bookworm	fixed	`0`
debian	bullseye	fixed	`0`
debian	forky	fixed	`0`
debian	sid	fixed	`0`
debian	trixie	fixed	`0`
ubuntu		affected
linux-kernel		affected

References

CWEs

CWE-264

Verify integrity in audit chain (admin only). AS-IS.