CVE-2024-39920

medium

Description

The TCP protocol in RFC 9293 has a timing side channel that makes it easier for remote attackers to infer the content of one TCP connection from a client system (to any server), when that client system is concurrently obtaining TCP data at a slow rate from an attacker-controlled server, aka the "SnailLoad" issue. For example, the attack can begin by measuring RTTs via the TCP segments whose role is to provide an ACK control bit and an Acknowledgment Number.

References

https://www.tugraz.at/en/tu-graz/services/news-stories/tu-graz-news/singleview/article/neue-sicherheitsluecke-erlaubt-ueberwachung-besuchter-websites-und-angesehener-videos

https://www.snailload.com/snailload.pdf

https://www.snailload.com

https://www.rfc-editor.org/rfc/rfc9293.txt

https://www.instagram.com/p/C8wpO1UtExw/

https://twitter.com/tugraz/status/1805272833322299412

https://news.ycombinator.com/item?id=40809629

https://github.com/IAIK/SnailLoad

Details

Source: Mitre, NVD

Published: 2024-07-03

Updated: 2024-08-05

Risk Information

CVSS v2

Base Score: 3.3

Vector: CVSS2#AV:A/AC:L/Au:N/C:P/I:N/A:N

Severity: Low

CVSS v3

Base Score: 4.3

Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Severity: Medium