Linux Kernel up to 4.17.2 Filter Parser trace_events_filter.c out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Linux Kernel up to 4.17.2. Impacted is an unknown function of the file kernel/trace/trace_events_filter.c of the component Filter Parser. This manipulation causes out-of-bounds write. The identification of this vulnerability is CVE-2018-12714. It is possible to initiate the attack remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 4.17.2 (Operating System) and classified as critical. Affected by this vulnerability is some unknown processing of the file kernel/trace/trace_events_filter.c of the component Filter Parser. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in the Linux kernel through 4.17.2. The filter parsing in kernel/trace/trace_events_filter.c could be called with no filter, which is an N=0 case when it expected at least one line to have been read, thus making the N-1 index invalid. This allows attackers to cause a denial of service (slab out-of-bounds write) or possibly have unspecified other impact via crafted perf_event_open and mmap system calls.

The bug was discovered 06/24/2018. The weakness was shared 06/24/2018 (Website). It is possible to read the advisory at git.kernel.org. This vulnerability is known as CVE-2018-12714 since 06/24/2018. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 120833 (Fedora 28 : kernel / kernel-tools (2018-d82a45d9ab)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (120833) and SecurityFocus (BID 104544†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 120833
Nessus Name: Fedora 28 : kernel / kernel-tools (2018-d82a45d9ab)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
Exposure Time: 🔍

Patch: git.kernel.org

Timelineinfo

06/24/2018 🔍
06/24/2018 +0 days 🔍
06/24/2018 +0 days 🔍
06/24/2018 +0 days 🔍
06/24/2018 +0 days 🔍
06/25/2018 +1 days 🔍
07/11/2018 +16 days 🔍
01/03/2019 +176 days 🔍
03/28/2023 +1545 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: 81f9c4e4177d31ced6f52a89bb70e93bfb77ca03
Status: Not defined

CVE: CVE-2018-12714 (🔍)
GCVE (CVE): GCVE-0-2018-12714
GCVE (VulDB): GCVE-100-119839
SecurityFocus: 104544 - Linux Kernel 'kernel/trace/trace_events_filter.c' Local Denial of Service Vulnerability

Entryinfo

Created: 06/25/2018 08:44
Updated: 03/28/2023 17:29
Changes: 06/25/2018 08:44 (69), 02/21/2020 15:27 (9), 03/28/2023 17:29 (5)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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