Das U-Boot up to 2022.07-rc5 i2c md Command do_i2c_md stack-based overflow

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.
7.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Das U-Boot up to 2022.07-rc5 and classified as critical. This issue affects the function do_i2c_md of the component i2c md Command Handler. Such manipulation leads to stack-based overflow. This vulnerability is documented as CVE-2022-34835. There is not any exploit available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability was found in Das U-Boot up to 2022.07-rc5. It has been rated as critical. Affected by this issue is the function do_i2c_md of the component i2c md Command Handler. The manipulation with an unknown input leads to a stack-based overflow vulnerability. Using CWE to declare the problem leads to 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). Impacted is confidentiality, integrity, and availability. CVE summarizes:

In Das U-Boot through 2022.07-rc5, an integer signedness error and resultant stack-based buffer overflow in the "i2c md" command enables the corruption of the return address pointer of the do_i2c_md function.

The weakness was released 06/30/2022 as 8f8c04bf1ebbd2f72f1643e7ad9617dafa6e5409. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2022-34835 since 06/29/2022. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 235044 (Debian dla-4150 : u-boot - security update), which helps to determine the existence of the flaw in a target environment.

Applying the patch 8f8c04bf1ebbd2f72f1643e7ad9617dafa6e5409 is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the vulnerability database at Tenable (235044). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.6

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

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

NVD Base Score: 🔍

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: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 235044
Nessus Name: Debian dla-4150 : u-boot - security update

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 8f8c04bf1ebbd2f72f1643e7ad9617dafa6e5409

Timelineinfo

06/29/2022 🔍
06/30/2022 +1 days 🔍
06/30/2022 +0 days 🔍
11/04/2025 +1223 days 🔍

Sourcesinfo

Advisory: 8f8c04bf1ebbd2f72f1643e7ad9617dafa6e5409
Status: Confirmed

CVE: CVE-2022-34835 (🔍)
GCVE (CVE): GCVE-0-2022-34835
GCVE (VulDB): GCVE-100-202976

Entryinfo

Created: 06/30/2022 07:21
Updated: 11/04/2025 15:26
Changes: 06/30/2022 07:21 (42), 07/17/2022 07:33 (18), 05/01/2025 17:12 (16), 11/04/2025 15:26 (1)
Complete: 🔍
Cache ID: 216::103

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

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you want to use VulDB in your project?

Use the official API to access entries easily!