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ubuntucveUbuntu.comUB:CVE-2024-32650
HistoryApr 19, 2024 - 12:00 a.m.

CVE-2024-32650

2024-04-1900:00:00
ubuntu.com
ubuntu.com
8
cve-2024-32650
rustls
tls library
infinite loop
network input
blocking server
close_notify message
fixed
version 0.23.5
version 0.22.4
version 0.21.11
unix

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

7.2 High

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

15.7%

Rustls is a modern TLS library written in Rust.
rustls::ConnectionCommon::complete_io could fall into an infinite loop
based on network input. When using a blocking rustls server, if a client
send a close_notify message immediately after client_hello, the
server’s complete_io will get in an infinite loop. This vulnerability is
fixed in 0.23.5, 0.22.4, and 0.21.11.

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

7.2 High

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

15.7%