Linux Kernel up to 4.12 kernel/exit.c kernel_wait4 input validation

CVSS Meta Temp Score
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability has been found in Linux Kernel up to 4.12 and classified as problematic. The impacted element is the function kernel_wait4 of the file kernel/exit.c. The manipulation leads to input validation. This vulnerability is traded as CVE-2018-10087. An attack has to be approached locally. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Linux Kernel up to 4.12 (Operating System). It has been rated as problematic. This issue affects the function kernel_wait4 of the file kernel/exit.c. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is availability. The summary by CVE is:

The kernel_wait4 function in kernel/exit.c in the Linux kernel before 4.13, when an unspecified architecture and compiler is used, might allow local users to cause a denial of service by triggering an attempted use of the -INT_MIN value.

The bug was discovered 07/10/2017. The weakness was shared 04/13/2018 (Website). The advisory is shared at git.kernel.org. The identification of this vulnerability is CVE-2018-10087 since 04/13/2018. An attack has to be approached locally. A simple authentication is necessary for exploitation. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 277 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 109758 (SUSE SLES12 Security Update : kernel (SUSE-SU-2018:1221-1)), 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 171166 (SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2018:1366-1)).

Upgrading to version 4.13 eliminates this vulnerability. A possible mitigation has been published 4 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (109758) and SecurityFocus (BID 103774†). The entries VDB-109544, VDB-111327, VDB-111669 and VDB-112151 are related to this item. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
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: 109758
Nessus Name: SUSE SLES12 Security Update : kernel (SUSE-SU-2018:1221-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 57937
OpenVAS Name: SuSE Update for Linux Kernel openSUSE-SU-2018:1418-1 (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: 🔍

Upgrade: Kernel 4.13
Patch: git.kernel.org

Timelineinfo

07/10/2017 🔍
04/13/2018 +276 days 🔍
04/13/2018 +0 days 🔍
04/13/2018 +0 days 🔍
04/13/2018 +0 days 🔍
04/16/2018 +3 days 🔍
05/11/2018 +25 days 🔍
05/14/2018 +3 days 🔍
02/28/2023 +1751 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: dd83c161fbcc5d8be637ab159c0de015cbff5ba4
Status: Confirmed

CVE: CVE-2018-10087 (🔍)
GCVE (CVE): GCVE-0-2018-10087
GCVE (VulDB): GCVE-100-116189
SecurityFocus: 103774 - Linux Kernel CVE-2018-10087 Local Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 04/16/2018 09:11
Updated: 02/28/2023 08:10
Changes: 04/16/2018 09:11 (79), 01/25/2020 07:12 (4), 02/28/2023 08:03 (5), 02/28/2023 08:10 (1)
Complete: 🔍
Cache ID: 216::103

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