polkit File Descriptor resource consumption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.5$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in polkit. The affected element is an unknown function of the component File Descriptor Handler. Performing a manipulation results in resource consumption. This vulnerability is reported as CVE-2021-4115. No exploit exists.

Detailsinfo

A vulnerability classified as problematic has been found in polkit (the affected version is unknown). This affects an unknown code of the component File Descriptor Handler. The manipulation with an unknown input leads to a resource consumption vulnerability. CWE is classifying the issue as CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. This is going to have an impact on availability.

The weakness was disclosed 02/22/2022 as 141. The advisory is shared at gitlab.freedesktop.org. This vulnerability is uniquely identified as CVE-2021-4115 since 12/14/2021. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 240038 (TencentOS Server 3: polkit (TSSA-2022:0032)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (240038). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.5

VulDB Base Score: 3.5
VulDB Temp Score: 3.5
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: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 240038
Nessus Name: TencentOS Server 3: polkit (TSSA-2022:0032)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/14/2021 🔍
02/22/2022 +70 days 🔍
02/22/2022 +0 days 🔍
06/17/2025 +1211 days 🔍

Sourcesinfo

Advisory: 141
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-4115 (🔍)
GCVE (CVE): GCVE-0-2021-4115
GCVE (VulDB): GCVE-100-193617

Entryinfo

Created: 02/22/2022 07:29
Updated: 06/17/2025 15:08
Changes: 02/22/2022 07:29 (37), 02/25/2022 14:14 (1), 06/17/2025 15:08 (16)
Complete: 🔍
Cache ID: 216::103

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

Discussion

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