Huawei CloudEngine 7800 Packet use after free

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.4$5k-$25k0.00

Summaryinfo

A vulnerability was found in Huawei CloudEngine 12800, CloudEngine 5800, CloudEngine 6800 and CloudEngine 7800. It has been rated as critical. This issue affects some unknown processing of the component Packet Handler. This manipulation causes use after free. This vulnerability appears as CVE-2021-37122. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability classified as critical was found in Huawei CloudEngine 12800, CloudEngine 5800, CloudEngine 6800 and CloudEngine 7800 (Cloud Software) (version unknown). Affected by this vulnerability is an unknown function of the component Packet Handler. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was presented 10/27/2021 as huawei-sa-20211008-01. It is possible to read the advisory at huawei.com. This vulnerability is known as CVE-2021-37122 since 07/20/2021. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 10/31/2021).

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

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / 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

07/20/2021 🔍
10/27/2021 +99 days 🔍
10/27/2021 +0 days 🔍
10/31/2021 +4 days 🔍

Sourcesinfo

Vendor: huawei.com

Advisory: huawei-sa-20211008-01
Status: Confirmed

CVE: CVE-2021-37122 (🔍)
GCVE (CVE): GCVE-0-2021-37122
GCVE (VulDB): GCVE-100-185563

Entryinfo

Created: 10/27/2021 10:38
Updated: 10/31/2021 18:25
Changes: 10/27/2021 10:38 (38), 10/31/2021 18:17 (1), 10/31/2021 18:25 (18)
Complete: 🔍
Cache ID: 216::103

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