CVE-2017-7472
Summary
| CVE | CVE-2017-7472 |
|---|---|
| State | PUBLISHED |
| Assigner | redhat |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2017-05-11 19:29:00 UTC |
| Updated | 2025-04-20 01:37:25 UTC |
| Description | The KEYS subsystem in the Linux kernel before 4.10.13 allows local users to cause a denial of service (memory consumption) via a series of KEY_REQKEY_DEFL_THREAD_KEYRING keyctl_set_reqkey_keyring calls. |
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
Problem Types: CWE-404 | exhaust kernel memory
| 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 Before 4.10.13 | affected Linux kernel before 4.10.13 | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.13 | af854a3a-2127-422b-91ae-364da2661108 | www.kernel.org | Release Notes, Vendor Advisory |
| Linux Kernel < 4.10.13 - 'keyctl_set_reqkey_keyring' Local Denial of Service - Linux dos Exploit | af854a3a-2127-422b-91ae-364da2661108 | www.exploit-db.com | |
| LKML: Eric Biggers: [PATCH] KEYS: fix keyctl_set_reqkey_keyring() to not leak thread keyrings | af854a3a-2127-422b-91ae-364da2661108 | lkml.org | Broken Link |
| Red Hat Customer Portal | af854a3a-2127-422b-91ae-364da2661108 | access.redhat.com | |
| Linux Kernel Thread Keyring Leak in keyctl_set_reqkey_keyring() Lets Local Users Consume Excessive Memory Resources - SecurityTracker | af854a3a-2127-422b-91ae-364da2661108 | www.securitytracker.com | |
| Red Hat Customer Portal | af854a3a-2127-422b-91ae-364da2661108 | access.redhat.com | |
| 1442086 – (CVE-2017-7472) CVE-2017-7472 kernel: keyctl_set_reqkey_keyring() leaks thread keyrings | af854a3a-2127-422b-91ae-364da2661108 | bugzilla.redhat.com | Issue Tracking, Patch |
| [security-announce] SUSE-SU-2018:0011-1: important: Security update for | af854a3a-2127-422b-91ae-364da2661108 | lists.opensuse.org | |
| Red Hat Customer Portal | af854a3a-2127-422b-91ae-364da2661108 | access.redhat.com | |
| Bug 1034862 – VUL-0: CVE-2017-7472: kernel-source: kernel: keyctl_set_reqkey_keyring() leaks thread keyrings | af854a3a-2127-422b-91ae-364da2661108 | bugzilla.novell.com | Issue Tracking, Patch |
| Linux Kernel 'security/keys/keyctl.c' Local Denial of Service Vulnerability | af854a3a-2127-422b-91ae-364da2661108 | www.securityfocus.com | |
| oss-security - CVE-2017-7472 Linux kernel: KEYS: fix keyctl_set_reqkey_keyring() to not leak thread keyrings | af854a3a-2127-422b-91ae-364da2661108 | openwall.com | Mailing List, Patch, Third Party Advisory |
| kernel/git/torvalds/linux.git - Linux kernel source tree | af854a3a-2127-422b-91ae-364da2661108 | git.kernel.org | Issue Tracking, Patch, Third Party Advisory |
| KEYS: fix keyctl_set_reqkey_keyring() to not leak thread keyrings · torvalds/linux@c9f838d · GitHub | af854a3a-2127-422b-91ae-364da2661108 | github.com | Issue Tracking, Patch, Third Party Advisory |
| LKML: Eric Biggers: [PATCH v2] KEYS: fix keyctl_set_reqkey_keyring() to not leak thread keyrings | af854a3a-2127-422b-91ae-364da2661108 | lkml.org | Broken Link |
| CVE-2017-7472 - 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.