Linux Kernel up to 4.7.6 SELinux W^X Policy fs/aio.c aio_mount access control

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Linux Kernel up to 4.7.6. The affected element is the function aio_mount of the file fs/aio.c of the component SELinux W^X Policy. Executing a manipulation can lead to access control. This vulnerability is handled as CVE-2016-10044. It is possible to launch the attack on the local host. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Linux Kernel up to 4.7.6 (Operating System). It has been declared as problematic. This vulnerability affects the function aio_mount of the file fs/aio.c of the component SELinux W^X Policy. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The aio_mount function in fs/aio.c in the Linux kernel before 4.7.7 does not properly restrict execute access, which makes it easier for local users to bypass intended SELinux W^X policy restrictions, and consequently gain privileges, via an io_setup system call.

The bug was discovered 02/06/2017. The weakness was released 02/07/2017 (Website). The advisory is available at git.kernel.org. This vulnerability was named CVE-2016-10044 since 12/26/2016. Local access is required to approach this attack. The successful exploitation requires a single authentication. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 100150 (SUSE SLES12 Security Update : kernel (SUSE-SU-2017:1247-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 169993 (SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2017:1360-1)).

Upgrading to version 4.7.7 eliminates this vulnerability. A possible mitigation has been published 4 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (100150), SecurityFocus (BID 96122†) and CERT Bund (WID-SEC-2024-3251). Entry connected to this vulnerability is available at VDB-96585. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Google Container-Optimized OS
  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • NetApp StorageGRID
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • Kyocera Printer
  • NetApp AFF
  • NetApp ActiveIQ Unified Manager
  • SUSE openSUSE
  • IBM Security Guardium
  • RESF Rocky Linux
  • Dell NetWorker
  • Dell Avamar
  • IBM QRadar SIEM
  • NetApp FAS
  • SolarWinds Security Event Manager
  • Dell PowerProtect Data Domain
  • Open Source Linux Kernel
  • Dell PowerScale OneFS

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 100150
Nessus Name: SUSE SLES12 Security Update : kernel (SUSE-SU-2017:1247-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 841810
OpenVAS Name: Ubuntu Update for linux USN-3422-1
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Kernel 4.7.7
Patch: git.kernel.org

Timelineinfo

12/26/2016 🔍
02/06/2017 +42 days 🔍
02/06/2017 +0 days 🔍
02/07/2017 +1 days 🔍
02/07/2017 +0 days 🔍
02/07/2017 +0 days 🔍
05/11/2017 +93 days 🔍
05/12/2017 +1 days 🔍
01/18/2026 +3173 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: 22f6b4d34fcf039c63a94e7670e0da24f8575a5a
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-10044 (🔍)
GCVE (CVE): GCVE-0-2016-10044
GCVE (VulDB): GCVE-100-96586
SecurityFocus: 96122 - Google Nexus Kernel File System CVE-2016-10044 Privilege Escalation Vulnerability
OSVDB: - CVE-2016-10044 - Linux - Security Bypass Issue
SecurityTracker: 1037798
CERT Bund: WID-SEC-2024-3251 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

See also: 🔍

Entryinfo

Created: 02/07/2017 17:03
Updated: 01/18/2026 20:49
Changes: 02/07/2017 17:03 (86), 11/11/2022 20:32 (5), 07/22/2025 19:46 (23), 09/24/2025 08:12 (1), 10/05/2025 05:11 (1), 01/18/2026 20:49 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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