CVE-2016-1583
Linux Kernel - 'ecryptfs' '/proc/$pid/environ' Local Privilege Escalation
Severity Score
7.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
1
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
The ecryptfs_privileged_open function in fs/ecryptfs/kthread.c in the Linux kernel before 4.6.3 allows local users to gain privileges or cause a denial of service (stack memory consumption) via vectors involving crafted mmap calls for /proc pathnames, leading to recursive pagefault handling.
La función ecryptfs_privileged_open en fs/ecryptfs/kthread.c en el kernel de Linux en versiones anteriores a 4.6.3 permite a usuarios locales obtener privilegios o provocar una denegación de servicio (consumo de memoria de pila) a través de vectores involucrados con llamadas mmap manipuladas para nombres de ruta /proc, que conduce a una página de error recursiva manipulada.
It was found that stacking a file system over procfs in the Linux kernel could lead to a kernel stack overflow due to deep nesting, as demonstrated by mounting ecryptfs over procfs and creating a recursion by mapping /proc/environ. An unprivileged, local user could potentially use this flaw to escalate their privileges on the system.
There is a stack overflow in Linux via ecryptfs and /proc/$pid/environ.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2016-01-12 CVE Reserved
- 2016-06-10 CVE Published
- 2023-03-08 EPSS Updated
- 2024-08-05 CVE Updated
- 2024-08-05 First Exploit
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
- CWE-121: Stack-based Buffer Overflow
CAPEC
References (51)
| URL | Tag | Source |
|---|---|---|
| http://packetstormsecurity.com/files/137560/Linux-ecryptfs-Stack-Overflow.html | Third Party Advisory |
|
| http://www.openwall.com/lists/oss-security/2016/06/10/8 | Mailing List |
|
| http://www.openwall.com/lists/oss-security/2016/06/22/1 | Mailing List |
|
| http://www.securityfocus.com/bid/91157 | Third Party Advisory | |
| http://www.securitytracker.com/id/1036763 | Third Party Advisory | |
| https://github.com/torvalds/linux/commit/f0fe970df3838c202ef6c07a4c2b36838ef0a88b | Third Party Advisory |
| URL | Date | SRC |
|---|---|---|
| https://www.exploit-db.com/exploits/39992 | 2024-08-05 |
| 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" | >= 2.6.19 < 3.18.54 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.19 < 3.18.54" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 3.19 < 4.4.14 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.19 < 4.4.14" | - |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.5 < 4.6.3 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.5 < 4.6.3" | - |
Affected
| ||||||
| Novell Search vendor "Novell" | Suse Linux Enterprise Software Development Kit Search vendor "Novell" for product "Suse Linux Enterprise Software Development Kit" | 11.0 Search vendor "Novell" for product "Suse Linux Enterprise Software Development Kit" and version "11.0" | sp4 |
Affected
| ||||||
| Novell Search vendor "Novell" | Suse Linux Enterprise Software Development Kit Search vendor "Novell" for product "Suse Linux Enterprise Software Development Kit" | 12.0 Search vendor "Novell" for product "Suse Linux Enterprise Software Development Kit" and version "12.0" | - |
Affected
| ||||||
| Novell Search vendor "Novell" | Suse Linux Enterprise Software Development Kit Search vendor "Novell" for product "Suse Linux Enterprise Software Development Kit" | 12.0 Search vendor "Novell" for product "Suse Linux Enterprise Software Development Kit" and version "12.0" | sp1 |
Affected
| ||||||
| Novell Search vendor "Novell" | Suse Linux Enterprise Debuginfo Search vendor "Novell" for product "Suse Linux Enterprise Debuginfo" | 11.0 Search vendor "Novell" for product "Suse Linux Enterprise Debuginfo" and version "11.0" | sp4 |
Affected
| ||||||
| Novell Search vendor "Novell" | Suse Linux Enterprise Desktop Search vendor "Novell" for product "Suse Linux Enterprise Desktop" | 12.0 Search vendor "Novell" for product "Suse Linux Enterprise Desktop" and version "12.0" | - |
Affected
| ||||||
| Novell Search vendor "Novell" | Suse Linux Enterprise Desktop Search vendor "Novell" for product "Suse Linux Enterprise Desktop" | 12.0 Search vendor "Novell" for product "Suse Linux Enterprise Desktop" and version "12.0" | sp1 |
Affected
| ||||||
| Novell Search vendor "Novell" | Suse Linux Enterprise Live Patching Search vendor "Novell" for product "Suse Linux Enterprise Live Patching" | 12.0 Search vendor "Novell" for product "Suse Linux Enterprise Live Patching" and version "12.0" | - |
Affected
| ||||||
| Novell Search vendor "Novell" | Suse Linux Enterprise Module For Public Cloud Search vendor "Novell" for product "Suse Linux Enterprise Module For Public Cloud" | 12 Search vendor "Novell" for product "Suse Linux Enterprise Module For Public Cloud" and version "12" | - |
Affected
| ||||||
| Novell Search vendor "Novell" | Suse Linux Enterprise Server Search vendor "Novell" for product "Suse Linux Enterprise Server" | 11.0 Search vendor "Novell" for product "Suse Linux Enterprise Server" and version "11.0" | extra |
Affected
| ||||||
| Novell Search vendor "Novell" | Suse Linux Enterprise Server Search vendor "Novell" for product "Suse Linux Enterprise Server" | 11.0 Search vendor "Novell" for product "Suse Linux Enterprise Server" and version "11.0" | sp4 |
Affected
| ||||||
| Novell Search vendor "Novell" | Suse Linux Enterprise Server Search vendor "Novell" for product "Suse Linux Enterprise Server" | 12.0 Search vendor "Novell" for product "Suse Linux Enterprise Server" and version "12.0" | - |
Affected
| ||||||
| Novell Search vendor "Novell" | Suse Linux Enterprise Server Search vendor "Novell" for product "Suse Linux Enterprise Server" | 12.0 Search vendor "Novell" for product "Suse Linux Enterprise Server" and version "12.0" | sp1 |
Affected
| ||||||
| Novell Search vendor "Novell" | Suse Linux Enterprise Workstation Extension Search vendor "Novell" for product "Suse Linux Enterprise Workstation Extension" | 12.0 Search vendor "Novell" for product "Suse Linux Enterprise Workstation Extension" and version "12.0" | - |
Affected
| ||||||
| Novell Search vendor "Novell" | Suse Linux Enterprise Workstation Extension Search vendor "Novell" for product "Suse Linux Enterprise Workstation Extension" | 12.0 Search vendor "Novell" for product "Suse Linux Enterprise Workstation Extension" and version "12.0" | sp1 |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04" | - |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04" | esm |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 15.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "15.10" | - |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04" | esm |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0" | - |
Affected
| ||||||