Vulnerability in Linux Linux_kernel
CVE-2016-1576
The overlayfs implementation in the Linux kernel through 4.5.2 does not properly restrict the mount namespace, which allows local users to gain privileges by mounting an overlayfs filesystem on top of a FUSE filesystem, and then executing…
EPSS: 0.004 (57.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Linux Linux_kernel
- Canonical Ubuntu_core — versions 15.04
- Canonical Ubuntu_linux — versions 12.04, 14.04, 15.10
- Canonical Ubuntu_touch — versions 15.04
- N/a — versions n/a
Public proof-of-concept exploits
References
- security@ubuntu.com (Patch, Mailing List, Third Party Advisory, x_refsource_MISC)
- security@ubuntu.com (Patch, Mailing List, Third Party Advisory, x_refsource_MISC)
- security@ubuntu.com (Patch, Mailing List, x_refsource_MISC, Vendor Advisory)
- security@ubuntu.com (x_refsource_CONFIRM, Third Party Advisory)
- [oss-security] 20160224 Overlayfs over Fuse Privilege Escalation in USERNS (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- security@ubuntu.com (x_refsource_CONFIRM, Third Party Advisory)
- security@ubuntu.com (Exploit, Third Party Advisory, x_refsource_MISC)
- [oss-security] 20211018 Re: CVE-2021-3847: OverlayFS - Potential Privilege Escalation using overlays copy_up (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2016-1576?
- CVE-2016-1576 is a high-severity vulnerability in Linux Linux_kernel. CVSS score: 7.8/10. Published 2016-05-02.
- How severe is CVE-2016-1576?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2016-1576 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.