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CVE-2024-32650
Rustls vulnerable to an infinite loop in rustls::conn::ConnectionCommon::complete_io() with proper client input
High7.5EPSS 0.95%
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Deferred | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.95% · top 39% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- crates.iorustlsGHSA-6g7w-8wpp-frhj (opens in a new tab)
References (4)
- https://github.com/rustls/rustls/security/advisories/GHSA-6g7w-8wpp-frhj (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/rustls/rustls/commit/2123576840aa31043a31b0770e6572136fbe0c2d (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/rustls/rustls/commit/6e938bcfe82a9da7a2e1cbf10b928c7eca26426e (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/rustls/rustls/commit/f45664fbded03d833dffd806503d3c8becd1b71e (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-6g7w-8wpp-frhj (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2024-32650)Record last updated .