SoftEther VPN 5.01.9674/5.02 Network Packet integer underflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in SoftEther VPN 5.01.9674/5.02. This affects an unknown function of the component Network Packet Handler. This manipulation causes integer underflow. This vulnerability is handled as CVE-2023-22308. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability has been found in SoftEther VPN 5.01.9674/5.02 (Network Encryption Software) and classified as problematic. Affected by this vulnerability is some unknown functionality of the component Network Packet Handler. The manipulation with an unknown input leads to a integer underflow vulnerability. The CWE definition for the vulnerability is CWE-191. The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result. As an impact it is known to affect availability. The summary by CVE is:

An integer underflow vulnerability exists in the vpnserver OvsProcessData functionality of SoftEther VPN 5.01.9674 and 5.02. A specially crafted network packet can lead to denial of service. An attacker can send a malicious packet to trigger this vulnerability.

The weakness was released 10/12/2023 as TALOS-2023-1737. The advisory is shared at talosintelligence.com. This vulnerability is known as CVE-2023-22308 since 03/24/2023. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/12/2023).

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

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

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (Talos): 🔍

CVSSv2info

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

Exploitinginfo

Class: Integer underflow
CWE: CWE-191 / CWE-189
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/24/2023 🔍
10/12/2023 +201 days 🔍
10/12/2023 +0 days 🔍
10/12/2023 +0 days 🔍

Sourcesinfo

Advisory: TALOS-2023-1737
Status: Not defined

CVE: CVE-2023-22308 (🔍)
GCVE (CVE): GCVE-0-2023-22308
GCVE (VulDB): GCVE-100-242041

Entryinfo

Created: 10/12/2023 18:29
Changes: 10/12/2023 18:29 (49)
Complete: 🔍
Cache ID: 216::103

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

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