CVE-2015-8660
Linux Kernel (Ubuntu / Fedora / RedHat) - 'Overlayfs' Local Privilege Escalation
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
8Exploited in Wild
-Decision
Descriptions
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.
La función ovl_setattr en fs/overlayfs/inode.c en el kernel de Linux hasta la versión 4.3.3 trata de fusionar distintas operaciones setattr, lo que permite a usuarios locales eludir las restricciones destinadas al acceso y modificar los atributos de archivos overlay arbitrarios a través de una aplicación manipulada.
The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. A flaw was found in the Linux kernel's keyring handling code, where in key_reject_and_link() an uninitialised variable would eventually lead to arbitrary free address which could allow attacker to use a use-after-free style attack. 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.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2015-12-23 CVE Reserved
- 2015-12-28 CVE Published
- 2016-01-06 First Exploit
- 2024-08-06 CVE Updated
- 2025-07-02 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-264: Permissions, Privileges, and Access Controls
- CWE-732: Incorrect Permission Assignment for Critical Resource
CAPEC
References (29)
| URL | Tag | Source |
|---|---|---|
| http://packetstormsecurity.com/files/135151/Ubuntu-14.04-LTS-15.10-overlayfs-Local-Root.html | Third Party Advisory |
|
| http://www.openwall.com/lists/oss-security/2015/12/23/5 | Mailing List |
|
| http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html | Third Party Advisory |
|
| http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html | Third Party Advisory |
|
| http://www.securityfocus.com/bid/79671 | Third Party Advisory | |
| http://www.securitytracker.com/id/1034548 | Third Party Advisory |
| URL | Date | SRC |
|---|---|---|
| https://packetstorm.news/files/id/135151 | 2016-01-06 | |
| https://packetstorm.news/files/id/139474 | 2016-11-01 | |
| https://www.exploit-db.com/exploits/40688 | 2024-08-06 | |
| https://www.exploit-db.com/exploits/39230 | 2024-08-06 | |
| https://www.exploit-db.com/exploits/39166 | 2024-08-06 | |
| https://github.com/whu-enjoy/CVE-2015-8660 | 2016-05-17 | |
| https://github.com/nhamle2/CVE-2015-8660 | 2023-01-15 | |
| https://github.com/carradolly/CVE-2015-8660 | 2024-09-11 |
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 3.18 < 3.18.31 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.18 < 3.18.31" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 3.19 < 4.1.22 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.19 < 4.1.22" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.2 < 4.4 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.2 < 4.4" | - |
Affected
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