Cache Poisoning
Monthly
Erlang/OTP kernel inet_res DNS resolver uses predictable sequential transaction IDs and lacks source port randomization, enabling DNS cache poisoning attacks against systems relying on this resolver in untrusted network environments. Affects OTP 17.0 through 28.4.2 (and specific patch versions 27.3.4.10, 26.2.5.19); unauthenticated remote attackers who can observe or predict DNS query patterns can forge DNS responses to redirect traffic or execute man-in-the-middle attacks. Vendor-released patches available; no public exploit code or active exploitation confirmed.
Erlang/OTP kernel inet_res DNS resolver uses predictable sequential transaction IDs and lacks source port randomization, enabling DNS cache poisoning attacks against systems relying on this resolver in untrusted network environments. Affects OTP 17.0 through 28.4.2 (and specific patch versions 27.3.4.10, 26.2.5.19); unauthenticated remote attackers who can observe or predict DNS query patterns can forge DNS responses to redirect traffic or execute man-in-the-middle attacks. Vendor-released patches available; no public exploit code or active exploitation confirmed.