Linux Kernel up to 4.18.0-193.el7 sysctl Subsystem rh_features uninitialized pointer

CVSS Meta Temp Score
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CTI Interest Score
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4.1$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Linux Kernel up to 4.18.0-193.el7. The impacted element is an unknown function of the file /proc/sys/kernel/rh_features of the component sysctl Subsystem. This manipulation causes uninitialized pointer. This vulnerability appears as CVE-2020-10774. The attack may be initiated remotely. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 4.18.0-193.el7 (Operating System) and classified as problematic. Affected by this vulnerability is an unknown code of the file /proc/sys/kernel/rh_features of the component sysctl Subsystem. The manipulation with an unknown input leads to a uninitialized pointer vulnerability. The CWE definition for the vulnerability is CWE-824. The product accesses or uses a pointer that has not been initialized. As an impact it is known to affect confidentiality.

The weakness was presented 05/28/2021. It is possible to read the advisory at bugzilla.redhat.com. This vulnerability is known as CVE-2020-10774. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 248384 (Linux Distros Unpatched Vulnerability : CVE-2020-10774), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.18.0-193.el8 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (248384). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Version

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Uninitialized pointer
CWE: CWE-824 / CWE-908
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: 248384
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2020-10774

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 4.18.0-193.el8

Timelineinfo

03/20/2020 🔍
05/28/2021 +433 days 🔍
05/28/2021 +0 days 🔍
08/12/2025 +1537 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: bugzilla.redhat.com
Status: Confirmed

CVE: CVE-2020-10774 (🔍)
GCVE (CVE): GCVE-0-2020-10774
GCVE (VulDB): GCVE-100-175963

Entryinfo

Created: 05/28/2021 06:21
Updated: 08/12/2025 13:46
Changes: 05/28/2021 06:21 (40), 05/30/2021 10:53 (5), 08/12/2025 13:46 (16)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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