Synology DiskStation Manager up to 6.2.3-25423 Web Request iscsi_snapshot_comm_core out-of-bounds

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Synology DiskStation Manager. This issue affects the function iscsi_snapshot_comm_core of the component Web Request Handler. Executing a manipulation can lead to out-of-bounds. This vulnerability appears as CVE-2021-27647. The attack may be performed from remote. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Synology DiskStation Manager (Network Attached Storage Software). This vulnerability affects the function iscsi_snapshot_comm_core of the component Web Request Handler. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was presented 03/12/2021 as SA_20_26. The advisory is shared for download at synology.com. This vulnerability was named CVE-2021-27647. There are known technical details, but no exploit is available.

Upgrading to version 6.2.3-25426-3 eliminates this vulnerability.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.0
VulDB Meta Temp Score: 8.9

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

NVD Base Score: 9.8
NVD Vector: 🔍

CNA Base Score: 9.8
CNA Vector (Synology Inc.): 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / 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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: DiskStation Manager 6.2.3-25426-3

Timelineinfo

02/24/2021 🔍
03/12/2021 +16 days 🔍
03/12/2021 +0 days 🔍
01/15/2025 +1405 days 🔍

Sourcesinfo

Vendor: synology.com

Advisory: SA_20_26
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-27647 (🔍)
GCVE (CVE): GCVE-0-2021-27647
GCVE (VulDB): GCVE-100-171208

Entryinfo

Created: 03/12/2021 13:40
Updated: 01/15/2025 07:16
Changes: 03/12/2021 13:40 (40), 04/01/2021 00:12 (6), 04/01/2021 00:19 (8), 01/15/2025 07:16 (36)
Complete: 🔍
Cache ID: 216::103

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