CVE-2026-55952— Erlang/OTP 输入验证错误漏洞

TLS 1.3 server denial of service via malformed ClientHello pre-shared key extension

The Erlang/OTP ssl application does not validate that the PSK identity list and binder list carried in a TLS 1.3 ClientHello pre-shared key extension have equal length before passing them to the session ticket handler. In tls_handshake_1_3:handle_pre_shared_key/3, an OfferedPreSharedKeys record with a mismatched number of identities and binders is forwarded directly to tls_server_session_ticket:use/4, which crashes the session ticket handler process. An unauthenticated remote attacker can send a single crafted ClientHello to a TLS 1.3 server with session tickets enabled (stateful or stateless mode) and permanently disrupt session ticket handling on that listener. New TLS 1.3 handshakes complete but subsequently crash when the server attempts to issue a session ticket, effectively making TLS 1.3 unusable on the affected listener until the ssl application is restarted. TLS 1.2 connections are not affected. This issue affects OTP from 22.2 before 29.0.3, 28.5.0.3 and 27.3.4.14 corresponding to ssl from 9.5 before 11.7.3, 11.6.0.3 and 11.2.12.10.

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CWE-1284

Erlang/OTP 输入验证错误漏洞

erlang erlang/otp是erlang社区开源的一套并发编程语言及运行时系统。 Erlang/OTP存在输入验证错误漏洞，该漏洞源于ssl application未验证TLS 1.3 ClientHello预共享密钥扩展中PSK身份列表和绑定列表的长度是否相等，可能导致未经身份验证的远程攻击者发送特制ClientHello，造成会话票据处理进程崩溃，使TLS 1.3不可用。

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