Espressif ESP-IDF up to 4.4 Bluetooth Classic BrakTooth memory corruption

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 (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
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.
2.1$0-$5k0.00

Summaryinfo

A vulnerability has been found in Espressif ESP-IDF up to 4.4 and classified as critical. This impacts an unknown function of the component Bluetooth Classic Handler. This manipulation causes memory corruption. The identification of this vulnerability is CVE-2021-28136. It is feasible to perform the attack on the physical device. There is no exploit available.

Detailsinfo

A vulnerability was found in Espressif ESP-IDF up to 4.4. It has been declared as problematic. Affected by this vulnerability is an unknown part of the component Bluetooth Classic Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect availability.

The weakness was shared 09/07/2021. It is possible to read the advisory at dl.packetstormsecurity.net. This vulnerability is known as CVE-2021-28136. The technical details are unknown and an exploit is not publicly available.

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

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 2.1
VulDB Meta Temp Score: 2.1

VulDB Base Score: 2.1
VulDB Temp Score: 2.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/11/2021 🔍
09/07/2021 +179 days 🔍
09/07/2021 +0 days 🔍
09/10/2021 +2 days 🔍

Sourcesinfo

Advisory: dl.packetstormsecurity.net
Status: Not defined

CVE: CVE-2021-28136 (🔍)
GCVE (CVE): GCVE-0-2021-28136
GCVE (VulDB): GCVE-100-182059

Entryinfo

Created: 09/07/2021 14:57
Updated: 09/10/2021 01:38
Changes: 09/07/2021 14:57 (52), 09/07/2021 14:59 (1), 09/10/2021 01:38 (2)
Complete: 🔍
Cache ID: 216::103

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

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you need the next level of professionalism?

Upgrade your account now!