strongSwan up to 5.9.11 DH Proxy buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability was found in strongSwan up to 5.9.11. It has been declared as critical. This affects an unknown part of the component DH Proxy. Such manipulation leads to buffer overflow. This vulnerability is documented as CVE-2023-41913. The attack can be executed remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in strongSwan up to 5.9.11 (Network Encryption Software). Affected by this issue is some unknown processing of the component DH Proxy. The manipulation with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is confidentiality, integrity, and availability. CVE summarizes:

strongSwan before 5.9.12 has a buffer overflow and possible unauthenticated remote code execution via a DH public value that exceeds the internal buffer in charon-tkm's DH proxy. The earliest affected version is 5.3.0. An attack can occur via a crafted IKE_SA_INIT message.

The weakness was released 12/07/2023. The advisory is available at strongswan.org. This vulnerability is handled as CVE-2023-41913 since 09/05/2023. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 211128 (Fedora 41 : strongswan (2024-dc9e695c3a)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.9.12 eliminates this vulnerability. The upgrade is hosted for download at github.com.

The vulnerability is also documented in the vulnerability database at Tenable (211128). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
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: 211128
Nessus Name: Fedora 41 : strongswan (2024-dc9e695c3a)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: strongSwan 5.9.12

Timelineinfo

09/05/2023 🔍
12/07/2023 +93 days 🔍
12/07/2023 +0 days 🔍
11/17/2024 +346 days 🔍

Sourcesinfo

Advisory: strongswan.org
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2023-41913 (🔍)
GCVE (CVE): GCVE-0-2023-41913
GCVE (VulDB): GCVE-100-247106

Entryinfo

Created: 12/07/2023 07:53
Updated: 11/17/2024 05:45
Changes: 12/07/2023 07:53 (42), 12/30/2023 10:29 (11), 06/11/2024 10:39 (15), 11/17/2024 05:45 (3)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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