Debian/dnsdist: medium 5.3
An attacker might be able to cause outgoing TCP connections to backend to be stuck until a timeout occurs instead of being released immediately, by sending IXFR queries. This could be used to cause a
Action: Upgrade dnsdist to 1.9.15-0+deb13u1 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 1.9.15-0+deb13u1 | - |
Fixed versions
| 1.9.15-0+deb13u1 |
Sources
- osv: DEBIAN-CVE-2026-40209#Debian:13/dnsdist
- https://security-tracker.debian.org/tracker/CVE-2026-40209
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