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CVE-2024-39920Medium

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…

CVSS
4.3
Medium
EPSS
0.00
p18
Published
2024-01-01
Updated
2024-01-01
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.

Tags · CWE
CWE-1255
CWE-385
CAPEC-189
CAPEC-462
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Timeline
2024-01-01
Published
2024-01-01
Updated
CVSS 3.1 breakdown
Attack Vector
AV: A
Adjacent Network (A)
Attack Complexity
AC: L
Low (L)
Privileges Required
PR: N
None (N)
User Interaction
UI: N
None (N)
Scope
S: U
Unchanged (U)
Confidentiality Impact
C: L
Low (L)
Integrity Impact
I: N
None (N)
Availability Impact
A: N
None (N)
Exploit indicators
EPSS
0.001 · p18
Known exploited (KEV)
No
Known exploits — Сканер-ВС
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