OpenVPN/OpenVPN Access Server Fragment divide by zero

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.5$0-$5k0.00

A vulnerability classified as problematic has been found in OpenVPN and OpenVPN Access Server (Network Encryption Software) (the affected version unknown). This affects an unknown part of the component Fragment Handler. The manipulation with an unknown input leads to a divide by zero vulnerability. CWE is classifying the issue as CWE-369. The product divides a value by zero. This is going to have an impact on availability. The summary by CVE is:

Using the --fragment option in certain configuration setups OpenVPN version 2.6.0 to 2.6.6 allows an attacker to trigger a divide by zero behaviour which could cause an application crash, leading to a denial of service.

The weakness was shared 11/11/2023. The advisory is shared at openvpn.net. This vulnerability is uniquely identified as CVE-2023-46849 since 10/27/2023. Neither technical details nor an exploit are publicly available.

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

Productinfo

Type

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔒
VulDB CVSS-BT Score: 🔒
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 3.5
VulDB Temp Score: 3.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Divide by zero
CWE: CWE-369 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Local: No
Remote: Partially

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: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

10/27/2023 CVE reserved
11/11/2023 +15 days Advisory disclosed
11/11/2023 +0 days VulDB entry created
12/06/2023 +25 days VulDB entry last update

Sourcesinfo

Advisory: FEDORA-2023-d9d55a0bfc
Status: Confirmed

CVE: CVE-2023-46849 (🔒)

Entryinfo

Created: 11/11/2023 07:58
Updated: 12/06/2023 11:39
Changes: 11/11/2023 07:58 (37), 12/06/2023 11:31 (1), 12/06/2023 11:39 (11)
Complete: 🔍
Cache ID: 3:B0D:103

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