| Name | CVE-2024-25581 |
| Description | When incoming DNS over HTTPS support is enabled using the nghttp2 provider, and queries are routed to a tcp-only or DNS over TLS backend, an attacker can trigger an assertion failure in DNSdist by sending a request for a zone transfer (AXFR or IXFR) over DNS over HTTPS, causing the process to stop and thus leading to a Denial of Service. DNS over HTTPS is not enabled by default, and backends are using plain DNS (Do53) by default. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1071750 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| dnsdist (PTS) | stretch | 1.1.0-2+deb9u1 | fixed |
| buster | 1.3.3-3 | fixed | |
| bullseye | 1.5.1-3 | fixed | |
| bookworm | 1.7.3-2 | fixed | |
| sid, trixie | 1.9.6-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| dnsdist | source | stretch | (not affected) | |||
| dnsdist | source | buster | (not affected) | |||
| dnsdist | source | bullseye | (not affected) | |||
| dnsdist | source | bookworm | (not affected) | |||
| dnsdist | source | (unstable) | 1.9.4-1 | 1071750 |
[bookworm] - dnsdist <not-affected> (Vulnerable code not present)
[bullseye] - dnsdist <not-affected> (Vulnerable code not present)
[buster] - dnsdist <not-affected> (Vulnerable code not present)
https://dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2024-03.html
Patches: https://downloads.powerdns.com/patches/2024-03/
[stretch] - dnsdist <not-affected> (Vulnerable code not present)