Realtek RTL8195A prior 2.08 WPA2 Handshake DecWPA2KeyData size stack-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Realtek RTL8195A. It has been declared as critical. Affected is the function DecWPA2KeyData of the component WPA2 Handshake Handler. Executing a manipulation of the argument size can lead to stack-based overflow. This vulnerability appears as CVE-2020-25854. The attack may be performed from remote. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Realtek RTL8195A and classified as critical. This vulnerability affects the function DecWPA2KeyData of the component WPA2 Handshake Handler. The manipulation of the argument size with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was presented 02/04/2021. The advisory is shared for download at vdoo.com. This vulnerability was named CVE-2020-25854. There are known technical details, but no exploit is available.

Upgrading to version 2.08 eliminates this vulnerability.

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Productinfo

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
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: Stack-based overflow
CWE: CWE-121 / 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: RTL8195A 2.08

Timelineinfo

09/23/2020 🔍
02/04/2021 +134 days 🔍
02/04/2021 +0 days 🔍
02/23/2021 +19 days 🔍

Sourcesinfo

Advisory: vdoo.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2020-25854 (🔍)
GCVE (CVE): GCVE-0-2020-25854
GCVE (VulDB): GCVE-100-169168

Entryinfo

Created: 02/04/2021 10:19
Updated: 02/23/2021 12:38
Changes: 02/04/2021 10:19 (39), 02/23/2021 12:38 (6)
Complete: 🔍
Cache ID: 216::103

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