CVE-2017-12193
Summary
| CVE | CVE-2017-12193 |
|---|---|
| State | PUBLISHED |
| Assigner | redhat |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2017-11-22 18:29:00 UTC |
| Updated | 2025-04-20 01:37:25 UTC |
| Description | The assoc_array_insert_into_terminal_node function in lib/assoc_array.c in the Linux kernel before 4.13.11 mishandles node splitting, which allows local users to cause a denial of service (NULL pointer dereference and panic) via a crafted application, as demonstrated by the keyring key type, and key addition and link creation operations. |
Risk And Classification
Primary CVSS: v3.0 5.5 MEDIUM from [email protected]
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.000560000 probability, percentile 0.175020000 (date 2026-05-14)
Problem Types: CWE-476 | CWE-476 CWE-476
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.0 | [email protected] | Primary | 5.5 | MEDIUM | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| 2.0 | [email protected] | Primary | 4.9 | AV:L/AC:L/Au:N/C:N/I:N/A:C |
CVSS v3.0 Breakdown
Attack Vector
LocalAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
NoneAvailability
HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v2.0 Breakdown
Access Vector
LocalAccess Complexity
LowAuthentication
NoneConfidentiality
NoneIntegrity
NoneAvailability
CompleteAV:L/AC:L/Au:N/C:N/I:N/A:C
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Linux | Linux Kernel | All | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Na | Linux Kernel Since 3.13 Up To 4.14 Not Including | affected Linux kernel since 3.13 up to 4.14 (not including) | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| USN-3698-2: Linux kernel (Trusty HWE) vulnerabilities | Ubuntu security notices | af854a3a-2127-422b-91ae-364da2661108 | usn.ubuntu.com | |
| Linux Kernel CVE-2017-12193 Null Pointer Dereference Local Denial of Service Vulnerability | af854a3a-2127-422b-91ae-364da2661108 | www.securityfocus.com | Third Party Advisory, VDB Entry |
| Bug 1501215 – CVE-2017-12193 kernel: Null pointer dereference due to incorrect node-splitting in assoc_array implementation | af854a3a-2127-422b-91ae-364da2661108 | bugzilla.redhat.com | Issue Tracking |
| Red Hat Customer Portal | af854a3a-2127-422b-91ae-364da2661108 | access.redhat.com | |
| assoc_array: Fix a buggy node-splitting case · torvalds/linux@ea67899 · GitHub | af854a3a-2127-422b-91ae-364da2661108 | github.com | Patch, Vendor Advisory |
| kernel/git/torvalds/linux.git - Linux kernel source tree | af854a3a-2127-422b-91ae-364da2661108 | git.kernel.org | Issue Tracking, Patch |
| www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.11 | af854a3a-2127-422b-91ae-364da2661108 | www.kernel.org | Issue Tracking |
| USN-3698-1: Linux kernel vulnerabilities | Ubuntu security notices | af854a3a-2127-422b-91ae-364da2661108 | usn.ubuntu.com | |
| Red Hat Customer Portal | MITRE | access.redhat.com | |
| Red Hat Customer Portal | MITRE | access.redhat.com | |
| CVE-2017-12193 - Red Hat Customer Portal | MITRE | access.redhat.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.