CVE-2015-8660
The ovl_setattr function in fs/overlayfs/inode.c in the Linux kernel through 4.3.3 attempts to merge distinct setattr operations, which…
- 6.7MediumCVSS base score
- 22.2%Exploitation in 30 daysEPSS · top 2.3% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 4Public exploitsMetasploit, Nuclei and Exploit-DB
Description
The ovl_setattr function in fs/overlayfs/inode.c in the Linux kernel through 4.3.3 attempts to merge distinct setattr operations, which allows local users to bypass intended access restrictions and modify the attributes of arbitrary overlay files via a crafted application.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list a Metasploit module and 3 Exploit-DB entries for it. 3 references of the record are tagged as an exploit.
Show the exploits7
Metasploit modules1 module
- Overlayfs Privilege Escalation (Metasploit module) (opens in a new tab)
exploit/linux/local/overlayfs_priv_escRank gooddisclosed 16 Jun 2015
Exploit-DB3 entries
- Linux Kernel (Ubuntu / Fedora / RedHat) - 'Overlayfs' Local Privilege Escalation (Metasploit) (Exploit-DB entry) (opens in a new tab)
EDB-ID 40688local, linuxpublished 2 Nov 2016Verified
- Linux Kernel 4.3.3 - 'overlayfs' Local Privilege Escalation (2) (Exploit-DB entry) (opens in a new tab)
EDB-ID 39230local, linuxpublished 12 Jan 2016Not verified
- Linux Kernel 4.3.3 (Ubuntu 14.04/15.10) - 'overlayfs' Local Privilege Escalation (1) (Exploit-DB entry) (opens in a new tab)
EDB-ID 39166local, linuxpublished 5 Jan 2016Verified
References tagged exploit3 references
- 39166 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- 40688 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- 39230 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By redhat
- 5 days later
· 5 days later
Published
- 9 years later
· 9 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium6.7 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 22.2% · top 2.3% of all CVEs (9 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.7.
Affected products
n/a
- affected n/a
References
23
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- 39166 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- SUSE-SU-2016:0751 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- SUSE-SU-2016:0755 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://packetstormsecurity.com/files/135151/Ubuntu-14.04-LTS-15.10-overlayfs-Local-Root.html (opens in a new tab)x_refsource_MISCx_transferred
- 1034548 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=acff81ec2c79492b180fade3c2894425cd35a545 (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2016:1541 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://github.com/torvalds/linux/commit/acff81ec2c79492b180fade3c2894425cd35a545 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 40688 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- [oss-security] 20151223 CVE request -- linux kernel: overlay: fix permission checking for setattr (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- RHSA-2016:1539 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- USN-2857-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- RHSA-2016:1532 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=1291329 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 39230 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- USN-2858-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-2858-3 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-2858-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-2857-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- 79671 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- SUSE-SU-2016:0752 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2015-8537 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2015-8660)Record last updated .