Apache NuttX up to 9.1.0/10.0.0 Fragmentation out-of-bounds write

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
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7.3$5k-$25k0.00

A vulnerability was found in Apache NuttX up to 9.1.0/10.0.0 and classified as critical. This issue affects an unknown functionality of the component Fragmentation Handler. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability.

The weakness was shared 12/09/2020. The advisory is shared at openwall.com. The identification of this vulnerability is CVE-2020-17529. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 12/09/2020).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Productinfo

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Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.3

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

CVSSv2info

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

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
ATT&CK: Unknown

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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/12/2020 🔍
12/09/2020 +119 days 🔍
12/09/2020 +0 days 🔍
12/15/2020 +6 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: openwall.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2020-17529 (🔍)

Entryinfo

Created: 12/09/2020 21:10
Updated: 12/15/2020 08:57
Changes: 12/09/2020 21:10 (17), 12/09/2020 21:11 (20), 12/15/2020 08:57 (2)
Complete: 🔍

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