CVE-2020-17438

Published: Dic 11, 2020 Last Modified: Nov 21, 2024 EU-VD ID: EUVD-2020-9391 Aliases: GSD-2020-17438
ExploitDB:
Other exploit source:
Google Dorks:
CRITICAL 9,8
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
HIGH 7,5
Source: [email protected]
Access Vector: network
Access Complexity: low
Authentication: none
Confidentiality: partial
Integrity: partial
Availability: partial

Description

AI Translation Available

An issue was discovered in uIP 1.0, as used in Contiki 3.0 and other products. The code that reassembles fragmented packets fails to properly validate the total length of an incoming packet specified in its IP header, as well as the fragmentation offset value specified in the IP header. By crafting a packet with specific values of the IP header length and the fragmentation offset, attackers can write into the .bss section of the program (past the statically allocated buffer that is used for storing the fragmented data) and cause a denial of service in uip_reass() in uip.c, or possibly execute arbitrary code on some target architectures.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0082
Percentile
0,7th
Updated

EPSS Score Trend (Last 90 Days)

787

Out-of-bounds Write

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Availability Other
Potential Impacts:
Modify Memory Execute Unauthorized Code Or Commands Dos: Crash, Exit, Or Restart Unexpected State
Applicable Platforms
Languages: Assembly, C, C++, Memory-Unsafe
Technologies: ICS/OT
Likelihood of Exploit: High
View CWE Details
Application

Uip by Uip Project

Product Information
Vendor Uip Project
Product Uip
Version 1.0
cpe:2.3:a:uip_project:uip:1.0:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01
Third Party Advisory US Government Resource
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01
https://www.kb.cert.org/vuls/id/815128
Third Party Advisory US Government Resource
https://www.kb.cert.org/vuls/id/815128
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01
Third Party Advisory US Government Resource
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01
https://www.kb.cert.org/vuls/id/815128
Third Party Advisory US Government Resource
https://www.kb.cert.org/vuls/id/815128