Debian/erlang: medium 5.9
Time-of-check Time-of-use (TOCTOU) race condition vulnerability in Erlang/OTP ssl (dtls_packet_demux module) allows an unauthenticated remote attacker to crash all active DTLS sessions on a listener.
Action: Upgrade erlang to 1:27.3.4.1+dfsg-1+deb13u3 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 1:27.3.4.1+dfsg-1+deb13u3 | - |
Fixed versions
| 1:27.3.4.1+dfsg-1+deb13u3 |
Sources
- osv: DEBIAN-CVE-2026-55950#Debian:13/erlang
- https://security-tracker.debian.org/tracker/CVE-2026-55950
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