Digium Asterisk up to 16.25.1/18.11.1/19.3.1 STIR resource consumption

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

Summaryinfo

A vulnerability was found in Digium Asterisk up to 16.25.1/18.11.1/19.3.1 and classified as problematic. This issue affects some unknown processing of the component STIR Handler. Such manipulation leads to resource consumption. This vulnerability is uniquely identified as CVE-2022-26498. The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Digium Asterisk up to 16.25.1/18.11.1/19.3.1 (Communications System). It has been rated as problematic. Affected by this issue is an unknown code of the component STIR Handler. The manipulation with an unknown input leads to a resource consumption vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability.

The weakness was disclosed 04/15/2022 as AST-2022-001. The advisory is shared for download at downloads.asterisk.org. This vulnerability is handled as CVE-2022-26498 since 03/06/2022. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

Upgrading to version 16.25.2, 18.11.2 or 19.3.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2022-31056). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Version

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Website

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: Resource consumption
CWE: CWE-400 / CWE-404
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Asterisk 16.25.2/18.11.2/19.3.2

Timelineinfo

03/06/2022 🔍
04/15/2022 +39 days 🔍
04/15/2022 +0 days 🔍
05/09/2026 +1485 days 🔍

Sourcesinfo

Vendor: digium.com

Advisory: AST-2022-001
Status: Confirmed

CVE: CVE-2022-26498 (🔍)
GCVE (CVE): GCVE-0-2022-26498
GCVE (VulDB): GCVE-100-197432
EUVD: 🔍

Entryinfo

Created: 04/15/2022 14:05
Updated: 05/09/2026 20:47
Changes: 04/15/2022 14:05 (41), 04/20/2022 15:18 (1), 05/09/2026 20:47 (15)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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