Summary
Ein Angreifer kann mehrere Schwachstellen in Erlang/OTP ausnutzen, um einen Denial of Service Angriff durchzuführen, Sicherheitsmaßnahmen zu umgehen und Daten zu manipulieren oder offenzulegen.
Product
Erlang/OTP (Open Telecom Platform) ist eine Sammlung von Bibliotheken und Tools, die auf der Programmiersprache Erlang basieren und für den Aufbau skalierbarer, fehlertoleranter und verteilter Systeme entwickelt wurden.
Vulnerabilities 3
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Critical 9.3
TLS 1.3 client skips server authentication when ServerHello carries an unsolicited pre_shared_key extension
Key Exchange without Entity Authentication vulnerability in Erlang/OTP ssl allows a peer that answers a TLS 1.3 client connection to impersonate the intended server. A pre_shared_key extension in the ServerHello that the client never offered causes the client…
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High 8.2
Superlinear CPU denial of service in Erlang/OTP ASN.1 OBJECT IDENTIFIER decoder
Inefficient algorithmic complexity in the Erlang/OTP asn1 OBJECT IDENTIFIER decoder allows a remote unauthenticated attacker to cause denial of service by sending a crafted OID during the TLS handshake. The BER OID decoder asn1rtt_ber:dec_subidentifiers/3 in …
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High 7.1
SSH daemon allocates unbounded idle session channels, bypassing max_channels
Allocation of Resources Without Limits or Throttling vulnerability in Erlang/OTP ssh allows an authenticated remote attacker to exhaust node memory by repeatedly opening session channels that are never assigned a handler. The "session" clause of ssh_connectio…
Revision history
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#3
Neue Updates von Fedora aufgenommen
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#2
Referenz(en) aufgenommen: EUVD-2026-84340, EUVD-2026-84338
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#1
Initiale Fassung
References
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GitHub Security Advisory GHSA-qghx-23m5-r55m vom 2026-09-21
https://github.com/erlang/otp/security/advisories/GHSA-qghx-23m5-r55m
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GitHub Security Advisory GHSA-qhcm-px9c-rvfh vom 2026-09-21
https://github.com/erlang/otp/security/advisories/GHSA-qhcm-px9c-rvfh
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GitHub Security Advisory GHSA-rgxr-4g4w-j875 vom 2026-09-21
https://github.com/erlang/otp/security/advisories/GHSA-rgxr-4g4w-j875
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Fedora Security Advisory FEDORA-2026-D47F327121 vom 2026-09-23
https://bodhi.fedoraproject.org/updates/FEDORA-2026-d47f327121
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Fedora Security Advisory FEDORA-2026-84FDE70EED vom 2026-09-23
https://bodhi.fedoraproject.org/updates/FEDORA-2026-84fde70eed