Open5GS up to 2.3.3 ogs_fqdn_parse length buffer overflow

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 was found in Open5GS up to 2.3.3 and classified as critical. This affects the function ogs_fqdn_parse. Such manipulation of the argument length leads to buffer overflow. This vulnerability is documented as CVE-2021-41794. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Open5GS up to 2.3.3. It has been rated as critical. Affected by this issue is the function ogs_fqdn_parse. The manipulation of the argument length 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.

The weakness was released 10/08/2021. The advisory is shared for download at research.nccgroup.com. This vulnerability is handled as CVE-2021-41794 since 09/29/2021. There are known technical details, but no exploit is available.

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

Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
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: 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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/29/2021 🔍
10/08/2021 +9 days 🔍
10/08/2021 +0 days 🔍
10/14/2021 +6 days 🔍

Sourcesinfo

Advisory: research.nccgroup.com
Status: Not defined

CVE: CVE-2021-41794 (🔍)
GCVE (CVE): GCVE-0-2021-41794
GCVE (VulDB): GCVE-100-184076

Entryinfo

Created: 10/08/2021 09:34
Updated: 10/14/2021 07:25
Changes: 10/08/2021 09:34 (37), 10/14/2021 07:25 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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