Linux Kernel 4.x 32-bit Syscall Interface Kernel Memory out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Linux Kernel 4.x. Impacted is an unknown function of the component 32-bit Syscall Interface. The manipulation leads to out-of-bounds write (Kernel Memory). This vulnerability is listed as CVE-2018-1068. The attack must be carried out locally. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel 4.x (Operating System). It has been rated as critical. This issue affects an unknown code of the component 32-bit Syscall Interface. The manipulation with an unknown input leads to a out-of-bounds write vulnerability (Kernel Memory). Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A flaw was found in the Linux 4.x kernel's implementation of 32-bit syscall interface for bridging. This allowed a privileged user to arbitrarily write to a limited range of kernel memory.

The bug was discovered 03/16/2018. The weakness was presented 03/16/2018 (Website). The advisory is shared at marc.info. The identification of this vulnerability is CVE-2018-1068 since 12/04/2017. The exploitation is known to be easy. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 109254 (SUSE SLES12 Security Update : kernel (SUSE-SU-2018:1005-1)), 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 237034 (Red Hat Update for kernel-alt (RHSA-2018:2948)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (109254), SecurityFocus (BID 103459†) and CERT Bund (WID-SEC-2022-0532). See VDB-109193, VDB-110288, VDB-110784 and VDB-110931 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Oracle Linux
  • Debian Linux
  • Open Source Linux Kernel
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle VM
  • NetApp FAS
  • Avaya Aura Communication Manager
  • Avaya Aura Session Manager
  • Avaya Aura Application Enablement Services
  • Avaya Aura System Manager
  • Avaya Aura Experience Portal
  • NetApp AFF

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.2
VulDB Temp Score: 4.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.7
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

Name: Kernel Memory
Class: Out-of-bounds write / Kernel Memory
CWE: CWE-787 / CWE-119
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: 109254
Nessus Name: SUSE SLES12 Security Update : kernel (SUSE-SU-2018:1005-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802268
OpenVAS Name: SuSE Update for Linux Kernel openSUSE-SU-2018:0781-1 (Linux Kernel)
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: 🔍

Patch: git.kernel.org

Timelineinfo

12/04/2017 🔍
03/05/2018 +91 days 🔍
03/16/2018 +11 days 🔍
03/16/2018 +0 days 🔍
03/16/2018 +0 days 🔍
03/17/2018 +1 days 🔍
04/20/2018 +34 days 🔍
04/23/2018 +3 days 🔍
09/14/2025 +2701 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: RHSA-2018:1318
Researcher: syzbot
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-1068 (🔍)
GCVE (CVE): GCVE-0-2018-1068
GCVE (VulDB): GCVE-100-114713

OVAL: 🔍

SecurityFocus: 103459 - Linux Kernel CVE-2018-1068 Local Privilege Escalation Vulnerability
CERT Bund: WID-SEC-2022-0532 - Linux Kernel: Mehrere Schwachstellen

See also: 🔍

Entryinfo

Created: 03/17/2018 12:01
Updated: 09/14/2025 03:47
Changes: 03/17/2018 12:01 (78), 01/14/2020 15:32 (5), 02/05/2021 11:37 (2), 02/22/2023 10:00 (4), 09/14/2025 03:47 (21)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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