{"id":69601,"date":"2025-09-06T04:31:54","date_gmt":"2025-09-06T01:01:54","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2025-58369-fs2-half-shutdown-of-socket-during-tls-handshake-may-result-in-spin-loop-on-opposite-side\/"},"modified":"2025-09-06T04:31:54","modified_gmt":"2025-09-06T01:01:54","slug":"cve-2025-58369-fs2-half-shutdown-of-socket-during-tls-handshake-may-result-in-spin-loop-on-opposite-side","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2025-58369-fs2-half-shutdown-of-socket-during-tls-handshake-may-result-in-spin-loop-on-opposite-side\/","title":{"rendered":"CVE-2025-58369 &#8211; fs2: Half-shutdown of socket during TLS handshake may result in spin loop on opposite side"},"content":{"rendered":"<p><strong>CVE ID : <\/strong>CVE-2025-58369<br \/>\n<br \/>\n<strong>Published : <\/strong> Sept. 5, 2025, 10:15 p.m. | 1\u00a0hour, 1\u00a0minute ago<br \/>\n<br \/>\n<strong>Description : <\/strong>fs2 is a compositional, streaming I\/O library for Scala. Versions 3.12.2 and lower and 3.13.0-M1 through 3.13.0-M6 is vulnerable to denial of service attacks though TLS sessions using fs2-io on the JVM using the fs2.io.net.tls package. When establishing a TLS session, if one side of the connection shuts down `write` while the peer side is awaiting more data to progress the TLS handshake, the peer side will spin loop on the socket read, fully utilizing a CPU. The CPU is consumed until the overall connection is closed, potentially shutting down a fs2-io powered server. This issue is fixed in versions 3.12.1 and 3.13.0-M7.<br \/>\n<br \/>\n<strong>Severity:<\/strong> 5.3 | MEDIUM<br \/>\n<br \/>\nVisit the link for more details, such as CVSS details, affected products, timeline, and more&#8230;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CVE ID : CVE-2025-58369 Published : Sept. 5, 2025, 10:15 p.m. | 1\u00a0hour, 1\u00a0minute ago Description : fs2 is a compositional, streaming I\/O library for Scala. Versions 3.12.2 and lower and 3.13.0-M1 through 3.13.0-M6 is vulnerable to denial of service attacks though TLS sessions using fs2-io on the JVM using the fs2.io.net.tls package. When establishing &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-69601","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/69601","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=69601"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/69601\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=69601"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=69601"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=69601"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}