An issue was discovered in FNET through 4.6.4. The code... · CVE-2020-17470 · GitHub Advisory Database · GitHub

An issue was discovered in FNET through 4.6.4. The code...

Moderate severity Unreviewed Published May 24, 2022 to the GitHub Advisory Database • Updated Oct 12, 2023

Package

No package listed— Suggest a package

Affected versions

Unknown

Patched versions

Unknown

Description

An issue was discovered in FNET through 4.6.4. The code that initializes the DNS client interface structure does not set sufficiently random transaction IDs (they are always set to 1 in _fnet_dns_poll in fnet_dns.c). This significantly simplifies DNS cache poisoning attacks.

References

Published by the National Vulnerability Database

Dec 11, 2020

Published to the GitHub Advisory Database May 24, 2022

Last updated Oct 12, 2023

Severity

Moderate

5.3

/ 10

CVSS base metrics

Attack vector

Network

Attack complexity

Low

Privileges required

None

User interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N