CVE-2024-32650

Rustls vulnerable to an infinite loop in rustls::conn::ConnectionCommon::complete_io() with proper client input

Description

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.06%
Affected: rustls rustls
Published at:
Updated at:

References

Link Tags
https://github.com/rustls/rustls/security/advisories/GHSA-6g7w-8wpp-frhj
https://github.com/rustls/rustls/commit/2123576840aa31043a31b0770e6572136fbe0c2d
https://github.com/rustls/rustls/commit/6e938bcfe82a9da7a2e1cbf10b928c7eca26426e
https://github.com/rustls/rustls/commit/f45664fbded03d833dffd806503d3c8becd1b71e

Frequently Asked Questions

What is the severity of CVE-2024-32650?
CVE-2024-32650 has been scored as a high severity vulnerability.
How to fix CVE-2024-32650?
To fix CVE-2024-32650, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-32650 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-32650 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-32650?
CVE-2024-32650 affects rustls rustls.
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