Linux Kernel up to 6.9.4 starfive uses stack-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Linux Kernel up to 6.9.4. The impacted element is an unknown function of the component starfive. Executing a manipulation of the argument uses can lead to stack-based overflow. This vulnerability is handled as CVE-2024-39478. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.9.4. It has been declared as critical. This vulnerability affects an unknown functionality of the component starfive. The manipulation of the argument uses 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. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: crypto: starfive - Do not free stack buffer RSA text data uses variable length buffer allocated in software stack. Calling kfree on it causes undefined behaviour in subsequent operations.

The advisory is shared for download at git.kernel.org. This vulnerability was named CVE-2024-39478 since 06/25/2024. The exploitation appears to be easy. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 07/08/2024).

Upgrading to version 6.9.5 eliminates this vulnerability. Applying the patch 5944de192663/d7f01649f4ea is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

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

Productinfo

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Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.6

VulDB Base Score: 8.0
VulDB Temp Score: 7.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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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: Partially
Local: Yes
Remote: Partially

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: Kernel 6.9.5
Patch: 5944de192663/d7f01649f4ea

Timelineinfo

06/25/2024 🔍
07/05/2024 +10 days 🔍
07/05/2024 +0 days 🔍
07/08/2024 +3 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2024-39478 (🔍)
GCVE (CVE): GCVE-0-2024-39478
GCVE (VulDB): GCVE-100-270376

Entryinfo

Created: 07/05/2024 09:11
Updated: 07/08/2024 22:01
Changes: 07/05/2024 09:11 (59), 07/06/2024 11:11 (1), 07/08/2024 22:01 (11)
Complete: 🔍
Cache ID: 216::103

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