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Bug#1115643: dnsdist: CVE-2025-30187

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Source: dnsdist
Version: 1.9.10-1
Severity: important
Tags: security upstream
X-Debbugs-Cc: carnil@debian.org, Debian Security Team <team@security.debian.org>
Control: found -1 2.0.0-6

Hi,

The following vulnerability was published for dnsdist.

CVE-2025-30187[0]:
| In some circumstances, when DNSdist is configured to use the nghttp2
| library to process incoming DNS over HTTPS queries, an attacker
| might be able to cause a denial of service by crafting a DoH
| exchange that triggers an unbounded I/O read loop, causing an
| unexpected consumption of CPU resources.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2025-30187
    https://www.cve.org/CVERecord?id=CVE-2025-30187
[1] https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2025-05.html
[2] https://www.openwall.com/lists/oss-security/2025/09/18/1

Regards,
Salvatore

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Bug#1115643: dnsdist: CVE-2025-30187 Salvatore Bonaccorso <carnil@debian.org> - 2025-09-18 22:20 +0200

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