CVE Vulnerability

CVE-2020-17468

An issue was discovered in FNET through 4.6.4. The code for processing the hop-by-hop header (in the IPv6 extension headers) doesn't check for a valid length of an extension header, and therefore an out-of-bounds read can occur in _fnet_ip6_ext_header_handler_options in fnet_ip6.c, leading to Denial-of-Service.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01 Third Party Advisory US Government Resource
http://fnet.sourceforge.net/manual/fnet_history.html Release Notes Third Party Advisory
https://www.kb.cert.org/vuls/id/815128 Third Party Advisory US Government Resource
Configurations

Configuration 1

cpe:2.3:a:fnet_project:fnet:*:*:*:*:*:*:*:*
Information

Published : 2020-12-11 11:15

Updated : 2020-12-17 07:33

NVD link : CVE-2020-17468

Mitre link : CVE-2020-17468

Products Affected
No products.
CWE
CWE-125

Out-of-bounds Read